Most Americans supported isolationism. They didn't want to engage in another European war. Although this agreement didn't include sending troops to Europe, it involved sending 50 destroyers to UK, so the amount of help was rather major.
It was after the Battle of Antietam
After the fall of the Berlin Wall the nation which broke up into many independent states was Yugoslavia. Before the fall of the Berlin Wall, Yugoslavia was just one country in southeastern Europe, but after the fall of the Berlin Wall, the country was divided into different socialist republics being: Bosnia and Herzegovina, Croatia, Macedonia, Montenegro, Slovenia and Serbia.
