USA HISTORY

Detailed explanation-1: -Britain and France lost most of their empires due to World War II. Germany, Italy, and Japan were conquered and occupied. The Soviet Union lost its most productive citizens-more than twenty million died in the war.

Detailed explanation-2: -And here’s where World War II changed Vietnam forever. In 1940, the German army sliced through France like butter. Germany’s ally, Japan, eventually invaded Vietnam and replaced the French as colonial masters. Vietnam was now a Japanese colony, and that put it squarely in the crosshairs of US foreign policy after 1941.

Detailed explanation-3: -At the end of the war, millions of people were dead and millions more homeless, the European economy had collapsed, and much of the European industrial infrastructure had been destroyed.

Detailed explanation-4: -Unlike the second world war, there was moral ambiguity in Vietnam. America faced an ill-defined enemy that was hard to distinguish from civilians. There were American atrocities and massacres of unarmed civilians. It was hard to portray this war as “good” versus “evil", as had been the case during the Second World War.