1. For the Australians, it's probably the battle for Firebase Coral in 1968; when some squadron's of the Australian 1st Armored Regiment deployed their Centurion 84mm gun tanks to retake the Firebases. See book: "The Battle of Coral" by Lex McAuley
2. For the US, the Green Beret outpost at Lang Vei was over-run by NVA PT76 Amphibious Light Tanks in 1968. The Special Forces men fought back with M72 LAWs (66mm). But the Firebase was taken by the NVA, the SF men were evacuated. See book: "Tanks in the Wire", by David B. Stockwell (1990) ISBN 10-0515-1033-30
3. For US Army tank battalions, the M48A3 Patton 90mm gun tanks engaged the NVA 202nd Armored Regiment at Ben Het in 1968. Of course it entailed Patton medium tanks verses NVA PT76 light tanks (90mm gun verses 76mm gun).
4. The first NVA verses ARVN tank battles occurred during the invasion of Laos in 1971; Operation Lam Son 719. The NVA were, again, using their time proven PT76 light tanks and T55 medium gunned tanks (100mm); the ARVNs were manning the M41 Walker Bulldog light tanks (76mm guns). They didn't receive the Pattons until 1973.
5. The biggest tank battles occurred during the 1972 Easter Offensive. It was during these battles that the NVA deployed the SAGGER anti-tank missile, knocking out US Patton tanks, this was the SAGGERs debut in combat. The SAGGER would play a bigger role a year later in the Yom Kipper War in 1973.
6. The same Easter Offensive introduced the US TOW anti-tank missile. US helicopters deployed to the Central Highlands during the NVA offensive and knocked out 24 NVA tanks.
7. The NVA were known to have 3 Armored Regiments; one of which was known to be operating in Laos & Cambodia (they were being tracked by US intelligence). When the final show-down came in 1975, it would be NVA T-54/55 medium gun tanks that would come crashing through the South's palace gates...ending the Vietnam War.
Australia deployed a regiment of their Centurion tanks to Vietnam.
Where they are needed to be used XD
Australia sent Warships (Destroyers); Infantrymen and Centurion tanks to Vietnam.
Australia used Centurion tanks purchased from Great Britain during the Vietnam War.
WWII thru Vietnam was 5 tanks per platoon. 3 tanks led by the LT was the heavy section, 2 tanks led by the platoon sergeant was the light section. After Vietnam, everything changed.
This was a WW1 engagement; tanks were rare in WW1. No No No Tank were not even invented in 1915 they were not even rare
Vietnam War tanks such as the M48 Patton and M551 Sheridan tanks had roughly 300 gallon fuel tanks.
Australia sent one squadron of Centurion tanks and infantry and artillerymen to South Vietnam.
When NVA tanks parked on the front lawn of South Vietnam's capital on 30 April 1975.
NVA tanks invaded Saigon and captured that city (the capital of South Vietnam).
helicopters and tanks.
NVA tanks captured the south's capital.