The Truman Doctrine was created by then-President Harry S. Truman in 1947. The purpose of the doctrine was to counter Soviet expansion into Europe during the Cold War.
Technology made manufactering more efficient. Hope this helps
To fight and gain land and supplies. And more space for the troops
The status of women
Political freedoms
Social freedoms
Popular culture
Nothing everything they wanted they didn’t get so they wanted war and that was that