US History Vocab 3.2

extension of the Monroe Doct. under which the US claimed the right to protect its interests in the W. Hemisphere

system in which each nation or alliance has equal strength

an artificial waterway constructed to provide a shortcut between the Atlantic and Pacific oceans, opened in 1914.

devotion to the interests and culture of one’s nation

policy of building up armed forces in aggressive preparedness for war and their use as a tool of diplomacy

operations in which the opposing forces attack from systems of fortified ditches rather than the open battlefield

British passenger ship that was sunk by a German U-boat on May 7, 1915

U.S. policy of using the nation’s economic power to exert influence over other countries

heir to the throne of Austria-Hungary whose assassination by a Serb nationalist started World War I

promise by Germany in World War I not to sink merchant vessels “without warning and without saving human lives.”

message sent by the German foreign minister to the German ambassador in Mexico, proposing a German- Mexican alliance

unoccupied region between opposing armies