6.4 End of the War

intervention in the affairs of other nations was never justifiable.

travel among nations should be regulated by an international organization.

no country should be allowed to spend more on defense than any other country.

cooperation among international leaders was essential to maintaining world peace.

Expansionists during the Spanish-American War

Isolationists regarding the Treaty of Versailles after World War 1

Hawks in Congress during the Vietnam War

Civil libertarians in Congress after the start of the War on Terror