After 2 years of negotiation between VVAA Representatives and the US Army, the Huey Cobra has landed in Melbourne. The exercise needed the support of our local Member, Mr. Greg Hunt, to ‘clear the way ‘ through the Customs and GST minefield. The helicopter, valued at $7.9 million is complete with full armaments and was brought to Museum standard while ensuring that no weaponry could ever be reactivated. The Museum paid for the helicopter to be ‘brought to museum standard’. This meant in part that the weaponry was rendered innocuous and various structural members were weakened to ensure that the craft would never fly again. Fortunately the alterations are not apparent to the display, and while there are two other Cobras in Australia, this is the only one with full armament. A heavily armed ground attack helicopter with single Lycoming T53-L-13 turbine engineused by the U.S. Army in Vietnam to support Australian & U.S. army ground operations. In addition to the M197 three barrelled 20mm Gatling gun, it carried eight anti-armour missiles and forty eight 2.75mm unguided air to ground rockets. This particular aircraft served in Vietnam from 1968 until 1971 and was damaged twice in combat. The aircraft is currently finished in a low visibility all-over mid green which includes the full US Army insignia and carries the Serial No. 69-15092helicopters, bell, weaponry, cobra, us military equipment, gunship

Mounted Colour Photograph Collage of American Soldiers and equipment in Vietnam.Variousphotograph, united states - armed forces, us military equipment

Laminated Ration Card U.S. Military Assistance Command, Vietnam. B No 448175 Belonging to Sgn P. Lancashire, No 3791862 17 Const Sgn RAEration card, us military equipment, p. lancashire

The BC-639A is a ground based AM VHF receiver covering the nominal frequency range of 100 -156 m/cs. The set was built for the U.S. Army Air Force in WW2 as part of a communication system to communicate with aircraft. A system of similar intent was built in Australia during WW2 by Radio Corporation of Victoria (ASTOR), with the addition of FM facilities. This system used the ARl7 receiver and ATl7 transmitter. Many of the sets had been modified after the war by the then Dept of Civil Aviation for use as monitoring receivers.This type was used at the AeradioThe BC-639A is a ground based AM VHF receiver covering the nominal frequency range of 100 -156 m/cs. The set was built for the U.S. Army Air Force in WW2 as part of a communication system to communicate with aircraft. Dark grey US Military colourradio receiver, bc 639, bc 639a, 639, aeradio

This is a set of nine photographs of technicians from the Royal Australian Survey Corps operating aerial surveys equipment c1980s. In photo .1P, CPL Steve Gloster was operating a RC10 air survey camera mounted in an Australian Army Pilatus Porter aircraft. The Wild RC10 super wide-angle air survey cameras were first introduced in 1971, were equipped with virtual distortion free lenses for supplementary, spot and special photography. In photo .2P, Roger Rees was operating Air Profile Recorder (APR) equipment. it was possibly taken during OP NERVOSE 84, sometime between June – August 1984 when based in Ngukurr, Northern Territory. The APR was operated at this time in unison with an RC10 camera. In 1963 the Royal Australian Survey Corps introduced the radar airborne profile recorder (Canadian Applied Research Ltd, Mark V, Airborne Profiler Recorder) was introduced for 1:100,000 mapping to replace terrain heighting by aneroid barometry. Later in 1974-1975, the Australian developed WREMAPS II airborne laser terrain profile recorder was introduced. In photo .3P, Neil Jones appears at the door of Airsearch Beechcraft Queen Air aircraft, Registration / Serial VH-MWX. This aircraft was typically used by RA Svy on air survey operations flying mission with Aerodist, APR and RC10 camera equipment. The Australian Army’s Pilatus Porter (short take-off and landing turbo propeller) was also equipped with a Wild RC10 aerial mapping camera for identification photography. The Pilatus Porter was also used on RA Svy’s map field checking operations. Photo .9P was taken at a survey station at an unknown location. In this photo an Australian Army Kiowa Light Observation Helicopter (LOH) is supporting a field survey party undertaking Magnavox AN/PRR-14 portable Doppler satellite observations. The satellite receiver’s antenna is plumbed over the survey ground mark surrounded by white plastic panels. The panels were used to identify the survey station on aerial photography. Introduced in 1974–1975, the Magnavox AN/PRR-14 portable Doppler satellite (US Navy Navigation Satellite System – TRANSIT) receivers and computing system provided independent three-dimensional point positions anywhere in the world, anytime, in any weather accurate to about 1.5metres with precise satellite ephemerides. The Bell OH-58 Kiowa LOH was a family of military helicopters used for observation, utility, and direct fire support. It was identified by RA Svy in the mid-1970s that considerable time was lost in replacing unserviceable remote equipment by road. Therefore Aerodist operations (pre-dating satellite receiver operations) were fully supported by Army’s Kiowa LOH aircraft. This is a set of nine photographs of technicians from the Royal Australian Survey Corps operating aerial surveys equipment c1980s. .1P to .3P, .5P to .9P - Colour and black and white photos on photographic paper and scanned at 300 dpi. .4P - Colour photo on 35mm slide film and scanned at 96 dpi. .1) & .2) - Photo, black & white, c1980s, CPL Steve Gloster operating an RC10 air camera. .3) - Photo, colour, 1984, Roger Rees operating Air Profile Recorder (APR) equipment. .4) - Photo, colour, c1980s, Neil Jones at the door of an Airsearch Beechcraft Queen Air aircraft, typically used by RA Svy on air survey operations. .5) - Photo, colour, c1980s. A Beechcraft King Air aircraft, also used by RA Svy on air survey operations. .6) - Photo, colour, c1980s. An Australian Army Pilatus Porter, used by RA Svy on air survey and map field checking operations. SGT Peter Mustart is possibly in the foreground. .7) to .8) - Photo, colour, c1980s. An Australian Army Pilatus Porter and unidentified personnel, used by RA Svy on air survey and map field checking operations. .9) - Photo, colour, c1980s. An Australian Army Kiowa helicopter supporting a field survey party undertaking Magnavox AN/PRR-14 portable Doppler satellite observations. There are biro marks on photos .4P to .9Proyal australian survey corps, rasvy, army survey regiment, asr, fortuna, aerial surveys

Wrist mounted flying compass worn by Flight Lieutenant Ian A. Lyons. Part of Flight Lieutenant Ian A. 'Joe' Lyons MBE Collection. See Catalogue No. 5374P for his service record.Circular faced brown bakelite flying compass with rotating dial. Degrees and NSEW marked on the dial. The direction needle is suspended in liquid. Brown leather strap with buckle for attaching to wrist.Stamped on the back: 'US ARMY COMPASS, WRIST. LIQUID FILLED, TAYLOR MODEL'.flying compass, equipment, navigation equipment, maps, flight lieutenant ian a. lyons

This pamphlet produced by Major Sam Thompson US Army Engineer Corps on exchange to Australia was published as a guide to AUTOMAP 1, the Army Survey Regiment’s first computer-based map production system. It examined how automation had changed the compilation and drafting phases of the map production process. It attempted to present in a light-hearty story telling style, short and clear description of each AUTOMAP 1 sub-system with photos of staff and equipment, diagrams and humorous cartoons. The cartoonist is unknown. The pamphlet was printed at the Army Survey Regiment, Bendigo Army Survey Regiment pamphlet comprises a manilla card cover printed in colour with 24 pages with photographs in black and white; and descriptions, diagrams, and cartoons printed in colour. It is bounded by two staples on its spine. The coloured pages have been scanned at 300 dpi and are stored on a USB Digital Storage Device. The page images have been converted into a video (.mp4) format and also stored on the USB. The video is 1.3Mb in size and runs for 1.3 minutes.royal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr

Items in collection of K W Peatling. Refer Cat 5140.2, Box 173 for his service details. The kidney shape is for fitting into a kidney shaped steel mug which then fits into a webbing pouch for fitting against the body. This type was used through the Vietnam era and beyond.Green plastic water bottle, kidney shaped with screw top lid attached.For water only, do not apply canteen to open flame or burner plates. On the base, US 1966.water bottle, equipment

Item souvenired by of Robert Clarence DERBY VX148150, enlisted in the 2nd AIF on 9.1.1944 age 21 years. Discharged on 22.5.1946 with the rank of Signalman in 19 Australian Lines of Communications, Signals.Brown, leather case with leather straps containing black metal telephone mechanics & bakerlite hand piece.“SIGNAL CORPS US ARMY, TELEPHONE EE-8-A”equipment, telephone, field, us

Ammunition Webbing Belt, probably held 100 rounds. Canvas, jungle green with 10 pouches. Each pouch has a flap with US pattern clips. The bottom of the pouch area has eyelets, the wide 10.5 cms buckles are of brass. The exposed belt section is 5 cms wide. One of the pouches has “US” stamped onto it. Rear has “D M Shoe Co 1941” stamped on it.uniforms - army, military history

Webbing belt, US pattern 56, jungle green with brass buckles & 4 brass keepers. Numerous sets of 3 eyelets spaced along entire belt.Stamped under belt: 2 x letter “D”costume accessories - male, uniforms - army, webbing, passchendaele barracks trust

.1), .2) & .3) Water bottles, plastic, screw top lids attached to the bottle. .1), .2) Green colour. .3) Greyish colour with green screw on lid..1) “V1968 [up arrow] 8465-71-108-8703” .2) “ACMIL 1982 [up arrow] 8465-66--86-6349” .3) “US 1964 APC”military equipment - army, containers - drink consumption, water, bottle

The Army terminology for this item is, “Cups canteen steel”Mug, stainless steel, kidney shaped with metal foldout handle.“US Landers ..........”military history - equipment, mug, cup, equipment

Items made up with full weight for use with school groups to show what carried & weight in Vietnam era.Complete kit green colour. .1) Vietnam era main back pack with webb belt, water bottles & basic pouch. 1. Webb belt. 2. Basic pouches, ammunition x 2. 3. Water bottle carriers x 3. 4. Water bottles x 3. 5. Cup, canteen steel, inside water bottle carrier. 6. Webbing harness. 7. Toggle rope. 8. Machete. 9. Machete scabbard. 10. Bayonet US M16. ) 1608.2 11. Bayonet Scabbard.) .2) Vietnam era basic webbing kit worn on waist with shoulder harness. 1. Back pack large. 2. Webb belt. 3. Water bottles x 3. 4. Wattle bottle carriers x 3. 5. Basic pouch, ammunition.military equipment - army, containers - military, drink consumption, webbing

Items issued to or brought home from Vietnam by Murray Stanley Metherall. refer 590.2..1) Water bottle carrier, green webbing, US with steel clips. .2) Water bottle, US aluminium, plastic lid and chain, kidney shaped. .3) Steel mug, kidney shaped. Australian, fold out steel handle. .4) Belt, webbing, green Australian. Has brass buckles and adjusters. .5) Pouch pistol style with press stud close, Possibly US. Steel clips on rear..2) "US Mirro 1953" .3) “8465-50-242-7843"equipment, webbing, pouches water

Item brought home from Vietnam by Murray Stanley Metherall. Refer 590.2.US service issue metal compass, green colour.Engraved on front "AEC License No 8-3736-3 Contains 120ML radioactive H DO NOT OPEN. Dispose of per KR 755-380. If found return to military authority" Maker's details engraved on rear. Regular markings on top.compass, equipment, accessorie, u.s

Item brought home from Vietnam by Murray Stanley Metherall. Refer 590.2 for his service details.US Army multi pattern lightweight blanket, used by attaching to waterproof poncho or on its own. Includes 7 paragraph usage instructions."Liner poncho DSA 100-67. C-0046x16x"military equipment, uniforms, us vietnam

Item souvenired by Edwin James Jones No 3511 AIF. Refer 1367.5 for his ervice history.Metal knife, American issue. Handle has a groove along each side."A.C Co US 1917" "130C 67"military equipment-american, us, jones

WW2 Military Field Telephone contained in a leather case with shoulder strap.Embosed on the front of the case “ SIGNAL CORPS U.S. ARMY TELEPHONE EE-8-A

Popularly known today as Z Special Unit, or by the wartime cover names of Inter-Allied Services Department (ISD) and Services Reconnaissance Department (SRD), Special Operations Australia (SOA) was the Special Operations component of the US-led Allied Intelligence Bureau in the Pacific Theatre during the Second World War. From the secret files of Z Special Unit, and the third in a set of five volumes, Volume 3 - Communications describes the communications links and equipment which were the lifeline for "Z" Operatives in the field. From "Z's" early days relying on Dutch military communications stations in Melbourne and Darwin to the establishment of dedicated "Z" communications stations in Darwin, Morotai and Labuan, Vol 3 provides the only comprehensive history of these sites ever committed to paper. Radio and Special Forces enthusiasts will be agog at the appendices in this volume, which not only include copies of the actual operating instructions and technical manuals for much of the specialist SOE communications hardware used by "Z" during the war, but also the once-top secret SOE ciphers and codes used by Z parties in the field. The Official History of Special Operations Australia, Volume 3 - Communications is a unique record of one of the most important aspects of Second World War Special Operations.australian special operations, special forces, world war ii

One pharmaceutical enterprise which put greater emphasis on the manufacturing side of its business and whose successors strengthened this emphasis was Faulding's. A pharmacist, Francis H. Faulding, started his shop in Adelaide in 1841 and formed a partnership with an English physician, L. Scammel, in 1861. From its beginnings the firm showed a flare for innovation. After Simpson's discovery of the anaesthetic properties of chloroform in 1847, Francis Faulding was the first to import chloroform; in 1858 he distributed cocaine preparations; in 1864 he produced the first olive oil from South Australian olives and, after J. Lister's reports in Lancet on the reduction of mortality after surgery with the use of phenol, Faulding began production of antiseptics ('Solyptol') in 1867. Faulding was also the first to utilize the medicinal and antiseptic properties of eucalyptus oil which was obtained from distilleries on Kangaroo Island The Second World War in Europe disrupted the supply of cod liver oil, an important source of Vitamin A. Faulding chemists found an alternative source in white schnapper shark, which sustained supplies in Australia as well as generated exports to the UK . When supplies of I.G. Farben's newly discovered sulpha drugs ran out, Faulding became involved in the national program organised by the Medical Equipment Control Committee (MECC) and, jointly with universities, synthesised sulphanilamide. Following the transfer of American knowhow. Faulding's was also the first private enterprise to produce yet another life saving drug of military importance, penicillin. After the war basic synthesis of antibiotics became difficult to sustain by private enterprise because of the gigantic scale advantages of competing US producers, and competition in the synthesis of new drugs demanded huge investment in R & D; Fauldings maintained their business by a combination of marketing, wholesaling and producing consumer and medical products. In the 1970s, however, Fauldings set a remarkable precedent in research strategy and achievement in the Australian pharmaceutical business. They decided to concentrate their research on drugs which had proven efficacy, but which also suffered from certain shortcomings restricting their clinical usefulness, and to seek advances overcoming these shortcomings. This was an imaginative new strategy, a way of grafting Australian knowhow on to major products, in keeping with local resources and yet offering opportunities for sophisticated skill. At the same time it promised to open international markets, since the major producers of the basic drugs could hardly ignore significant advances. https://www.samhs.org.au/Virtual%20Museum/Medicine/drugs_nonsurg/Fauldings_drug/Fauldings_drugs.html This decorative gift box once containing Faulding’s Old English Lavender soap or powder belonged to Dr. Angus’ wife Gladys. It was donated to Flagstaff Hill Maritime Village by the family of Doctor William Roy Angus, Surgeon and Oculist. It is part of the “W.R. Angus Collection” includes historical medical equipment, surgical instruments and material once belonging to Dr Edward Ryan and Dr Thomas Francis Ryan, (both of Nhill, Victoria) as well as Dr Angus’ own belongings. The Collection’s history spans the medical practices of the two Doctors Ryan, from 1885-1926 plus that of Dr Angus, up until 1969. Powder or soap in boxes such as this was perfumed and used as part of a women’s personal grooming in the early to mid 20th century. Faulding’s Company began in Adelaide, Australia, in 1845 and made a wide range of cosmetic and perfume products as well as pharmaceuticals. The company is still in operation today. ABOUT THE “W.R.ANGUS COLLECTION” Doctor William Roy Angus M.B., B.S., Adel., 1923, F.R.C.S. Edin.,1928 (also known as Dr Roy Angus) was born in Murrumbeena, Victoria in 1901 and lived until 1970. He qualified as a doctor in 1923 at University of Adelaide, was Resident Medical Officer at the Royal Adelaide Hospital in 1924 and for a period was house surgeon to Sir (then Mr.) Henry Simpson Newland. Dr Angus was briefly an Assistant to Dr Riddell of Kapunda, then commenced private practice at Curramulka, Yorke Peninsula, SA, where he was physician, surgeon and chemist. In 1926, he was appointed as new Medical Assistant to Dr Thomas Francis Ryan (T.F. Ryan, or Tom), in Nhill, Victoria, where his experiences included radiology and pharmacy. In 1927 he was Acting House Surgeon in Dr Tom Ryan’s absence. Dr Angus had become engaged to Gladys Forsyth and they decided he further his studies overseas in the UK in 1927. He studied at London University College Hospital and at Edinburgh Royal Infirmary and in 1928, was awarded FRCS (Fellow from the Royal College of Surgeons), Edinburgh. He worked his passage back to Australia as a Ship’s Surgeon on the on the Australian Commonwealth Line’s T.S.S. Largs Bay. Dr Angus married Gladys in 1929, in Ballarat. (They went on to have one son (Graham 1932, born in SA) and two daughters (Helen (died 12/07/1996) and Berenice (Berry), both born at Mira, Nhill ) According to Berry, her mother Gladys made a lot of their clothes. She was very talented and did some lovely embroidery including lingerie for her trousseau and beautifully handmade baby clothes. Dr Angus was a ‘flying doctor’ for the A.I.M. (Australian Inland Ministry) Aerial Medical Service in 1928 . Its first station was in the remote town of Oodnadatta, where Dr Angus was stationed. He was locum tenens there on North-South Railway at 21 Mile Camp. He took up this ‘flying doctor’ position in response to a call from Dr John Flynn; the organisation was later known as the Flying Doctor Service, then the Royal Flying Doctor Service. A lot of his work during this time involved dental surgery also. Between 1928-1932 he was surgeon at the Curramulka Hospital, Yorke Peninsula, South Australia. In 1933 Dr Angus returned to Nhill and purchased a share of the Nelson Street practice and Mira hospital (a 2 bed ward at the Nelson Street Practice) from Dr Les Middleton one of the Middleton Brothers, the current owners of what previously once Dr Tom Ryan’s practice. Dr Tom and his brother had worked as surgeons included eye surgery. Dr Tom Ryan performed many of his operations in the Mira private hospital on his premises. He had been House Surgeon at the Nhill Hospital 1902-1926. Dr Tom Ryan had one of the only two pieces of radiology equipment in Victoria during his practicing years – The Royal Melbourne Hospital had the other one. Over the years Dr Tom Ryan had gradually set up what was effectively a training school for country general-practitioner-surgeons. Each patient was carefully examined, including using the X-ray machine, and any surgery was discussed and planned with Dr Ryan’s assistants several days in advance. Dr Angus gained experience in using the X-ray machine there during his time as assistant to Dr Ryan. When Dr Angus bought into the Nelson Street premises in Nhill he was also appointed as the Nhill Hospital’s Honorary House Surgeon 1933-1938. His practitioner’s plate from his Nhill surgery is now mounted on the doorway to the Port Medical Office at Flagstaff Hill Maritime Village, Warrnambool. When Dr Angus took up practice in the Dr Edward and Dr Tom Ryan’s old premises he obtained their extensive collection of historical medical equipment and materials spanning 1884-1926. A large part of this collection is now on display at the Port Medical Office at Flagstaff Hill Maritime Village in Warrnambool. In 1939 Dr Angus and his family moved to Warrnambool where he purchased “Birchwood,” the 1852 home and medical practice of Dr John Hunter Henderson, at 214 Koroit Street. (This property was sold in1965 to the State Government and is now the site of the Warrnambool Police Station. and an ALDI sore is on the land that was once their tennis court). The Angus family was able to afford gardeners, cooks and maids; their home was a popular place for visiting dignitaries to stay whilst visiting Warrnambool. Dr Angus had his own silk worm farm at home in a Mulberry tree. His young daughter used his centrifuge for spinning the silk. Dr Angus was appointed on a part-time basis as Port Medical Officer (Health Officer) in Warrnambool and held this position until the 1940’s when the government no longer required the service of a Port Medical Officer in Warrnambool; he was thus Warrnambool’s last serving Port Medical Officer. (Masters of immigrant ships arriving in port reported incidents of diseases, illness and death and the Port Medical Officer made a decision on whether the ship required Quarantine and for how long, in this way preventing contagious illness from spreading from new immigrants to the residents already in the colony.) Dr Angus was a member of the Australian Medical Association, for 35 years and surgeon at the Warrnambool Base Hospital 1939-1942, He served as a Surgeon Captain during WWII1942-45, in Ballarat, Victoria, and in Bonegilla, N.S.W., completing his service just before the end of the war due to suffering from a heart attack. During his convalescence he carved an intricate and ‘most artistic’ chess set from the material that dentures were made from. He then studied ophthalmology at the Royal Melbourne Eye and Ear Hospital and created cosmetically superior artificial eyes by pioneering using the intrascleral cartilage. Angus received accolades from the Ophthalmological Society of Australasia for this work. He returned to Warrnambool to commence practice as an ophthalmologist, pioneering in artificial eye improvements. He was Honorary Consultant Ophthalmologist to Warrnambool Base Hospital for 31 years. He made monthly visits to Portland as a visiting surgeon, to perform eye surgery. He represented the Victorian South-West subdivision of the Australian Medical Association as its secretary between 1949 and 1956 and as chairman from 1956 to 1958. In 1968 Dr Angus was elected member of Spain’s Barraquer Institute of Barcelona after his research work in Intrasclearal cartilage grafting, becoming one of the few Australian ophthalmologists to receive this honour, and in the following year presented his final paper on Living Intrasclearal Cartilage Implants at the Inaugural Meeting of the Australian College of Ophthalmologists in Melbourne In his personal life Dr Angus was a Presbyterian and treated Sunday as a Sabbath, a day of rest. He would visit 3 or 4 country patients on a Sunday, taking his children along ‘for the ride’ and to visit with him. Sunday evenings he would play the pianola and sing Scottish songs to his family. One of Dr Angus’ patients was Margaret MacKenzie, author of a book on local shipwrecks that she’d seen as an eye witness from the late 1880’s in Peterborough, Victoria. In the early 1950’s Dr Angus, painted a picture of a shipwreck for the cover jacket of Margaret’s book, Shipwrecks and More Shipwrecks. She was blind in later life and her daughter wrote the actual book for her. Dr Angus and his wife Gladys were very involved in Warrnambool’s society with a strong interest in civic affairs. He had an interest in people and the community They were both involved in the creation of Flagstaff Hill, including the layout of the gardens. After his death (28th March 1970) his family requested his practitioner’s plate, medical instruments and some personal belongings be displayed in the Port Medical Office surgery at Flagstaff Hill Maritime Village, and be called the “W. R. Angus Collection”. Fauldings Company is a very historical Australian company, still in operating today. The powder box is an example of fashion and grooming in the 1930's in Australia. The W.R. Angus Collection is significant for still being located at the site it is connected with, Doctor Angus being the last Port Medical Officer in Warrnambool. The collection of medical instruments and other equipment is culturally significant, being an historical example of medicine from late 19th to mid-20th century. Dr Angus assisted Dr Tom Ryan, a pioneer in the use of X-rays and in ocular surgery. Container, wooden soap or powder box with separate lid. It is part of the W.R. Angus Collection. Round box is made from light coloured timber and was sold containing Faulding’s Old English Lavender soap or powder. The wooden bowl is light in colour and the lid has a decal with text and images of two ladies facing each other, a gentleman looking over his shoulder at them, and red roses.Printed on decal “FAULDING'S OLD ENGLISH LAVENDER”.flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, dr w r angus, gladys angus, faulding's old english lavender, personal effects 1900's, grooming items1900's, faulding's company australia, fauldings powder box, fauldings soap box

General Purpose. US Army Medical Kit used at company level.equipment, vietnam, army

Mess Tins US Issue Pannekinsequipment, vietnam, army

Pack Breast 1944 British made US Armyequipment, ww2, army

US gas mask bagequipment, c1960, us army

Mark 2 USequipment, c1970, us army

Helmet cover US. Camouflageequipment, c1970, army

Canvas for USA M1 Carbineequipment, ww2, us army

Army Belt Canvas US styleequipment, c1960, army

Army Webbing. US Style with Bum Pack, water bottle, 2 Pouches & Webbing straps, Rope and Field Dressingequipment, vietnam, army