What war is seen as the us first major war

South and North Vietnam. South started in 1961 and but withdraws combat troops in 1973. Then in 1975 North Vietnam started. This was the longest US war.

after the roman empire fell, some of its cultural achievements lasted for some time and others were lost. lost achievements include architecture , coins, and literacy. however, several things remained, such as the language. people may not have spoken this language in every city, but it influenced the languages they did speak. they also created the julian , which was commonly used until the eighteenth century.