The Domino Theory of the spread of communism led the United States to .

send American troops to fight in Vietnam

not enter the Vietnam War

enter WWII

send American troops to Korea

enter the Korean War

Article ii "each state retains its sovereignty, freedom, and independence, and every power, jurisdiction, and right, which is not by this confederation expressly delegated to the united states, in congress assembled."—articles of confederation which of the following principles of american democracy does this quote best represent? social contract natural rights federalism rule of law