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XYZ Affair
A confrontation between the United States and Republican France that led to an undeclared war called the Quasi-War. -
Pinckney's Treaty
Established intentions of friendship between the United States and Spain. -
War of 1812
A military conflict, lasting for two and a half years, fought by the United States of America against the United Kingdom of Great Britain and Ireland, its North American colonies and its Native American allies -
Adams-Onis Treaty
A treaty between the United States and Spain in 1819 that ceded Florida to the U.S. and defined the boundary between the U.S. and New Spain. -
Treaty Of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo was signed by the United States and Mexico on February 2, 1848, ending the Mexican War and extending the boundaries of the United States by over 525,000 square miles. -
Gadsden Purchase
The Gadsden Purchase is a 29,640-square-mile region of present-day southern Arizona and southwestern New Mexico that was purchased by the United States -
Chinese Exclusion Act
Prevented Chinese laborers from entry; law was often circumvented by smugglers and "paper sons" using fake documents -
Hawaiian Annexation
America's annexation of Hawaii in 1898 extended U.S. territory into the Pacific and highlighted resulted from economic integration and the rise of the United States as a Pacific power. -
Platt Amendment
Amended the 1901 Army Appropriations Bill. -
Zimmerman Telegram
An internal diplomatic communication issued from the German Foreign Office in January, 1917 that proposed a military alliance between Germany and Mexico in the event of the United States entering World War I against Germany. -
Washington Naval Conference
A military conference called by President Warren G. Harding and held in Washington from 12 November 1921 to 6 February 1922 -
Smooth-Hawley Tariff
An act sponsored by Senator Reed Smoot and Representative Willis C. Hawley and signed into law on June 17, 1930, that raised U.S. tariffs on over 20,000 imported goods to record levels. -
Atlantic Charter
A pivotal policy statement issued on 14 August 1941, that, early in World War II, defined the Allied goals for the post-war world. The leaders of the United Kingdom and the United States drafted the work and all the Allies of World War II later confirmed it. -
Potsdam Conference
The Big Three—Soviet leader Joseph Stalin, British Prime Minister Winston Churchill (replaced on July 26 by Prime Minister Clement Attlee), and U.S. President Harry Truman—met in Potsdam, Germany, from July 17 to August 2, 1945, to negotiate terms for the end of World War II. -
New Look Policy
Name given to he national security policy of the United States during the administration of President Dwight D.Eisenhower. -
Bay of Pigs Invasion
Cuban exiles launched what became a botched invasion at the Bay of Pigs on the south coast of Cuba. In 1959, Fidel Castro came to power in an armed revolt that overthrew Cuban dictator Fulgencio Batista -
Tet Offensive
One of the largest military campaigns of the Vietnam War, launched on January 30, 1968 by forces of the Viet Cong and North Vietnam -
Détente
The easing of hostility or strained relations, especially between countries. -
Moscow Olypics Boycot
Boycott of Moscow Olympics and increase in military spending; sense of "malaise" or weakening in national and international affairs troubles Americans -
NAFTA
An agreement signed by Canada, Mexico, and the United States, creating a trilateral rules-based trade bloc in North America.
