a prolonged war (1954-1975) between the communist armies of North Vietnam who were supported by the Chinese and the armies of South Vietnam who were supported by the United States
Decades after expunging the idea of "small wars" from their textbooks after the trauma of Vietnam, American officers are relearning the lessons the hard way.
美国在越南饱受创伤之后，花了几十年从教科书上删去了“小战争”的概念，但美国的军官正困难地重学教训。
2
But Douthat says the same sort of phenomenon has cropped up in the realm of public policy with such endeavors as the wars in Vietnam and Iraq, or the European Union's creation of a common currency.
但杜塔特认为，同样的现象也出现在公共政策领域，比如越战和伊战，以及欧盟创造统一货币。
3
Australia, remember, has sent its troops to fight in wars from South Africa to Vietnam. Nowadays they go to Iraq and Afghanistan.