Put a stick in the middle of a blanket
The major events that increased polarization on the world stage from the close of world war II through 1961 had to do with the Cold War between Russia and the US--primarily proxy wars such as the Korean War.
A lot of angry people with guns shooting at each other.
The conclusion is that although a US president can technically send troops into a foreign country, in order to lawfully declare war, he or she must get the approval of Congress.
