-
Geroge Washington - was signed in San Lorenzo de El Escorial on October 27, 1795 and established intentions of friendship between the United States and Spain.
-
Jonh Adams - was a political and diplomatic episode in 1797 and 1798, early in the administration of John Adams, involving a confrontation between the United States and Republican France that led to an undeclared war called the Quasi-War
-
Thomas Jefferson - was a military conflict that lasted from June 18, 1812 to February 18, 1815, fought between the United States of America and Great Britain, its North American colonies, and its North American Indian allies.
-
James Madison - was 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.
-
James K. Polk - is the peace treaty signed on February 2, 1848, in the Villa de Guadalupe Hidalgo between the United States and Mexico that ended the Mexican–American War
-
Franklin Pierce - It was then ratified, with changes, by the U.S. Senate on April 25, 1854, and signed by 14th President Franklin Pierce,
-
Chester Arthur - It was one of the most significant restrictions on free immigration in US history, prohibiting all immigration of Chinese laborers
-
Theodore Roosevelt - was passed as part of the 1901 Army Appropriations Bill
-
William Howard Taft - was 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.
-
Warren G Harding - was a military conference called by U.S. President Warren G. Harding and held in Washington, D.C., from 12 November 1921 to 6 February 1922.
-
Herbet Hoover - was 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
-
Franklin D Roosevelt - was a pivotal policy statement issued on 14 August 1941, that, early in World War II, defined the Allied goals for the post-war world.
-
Harry Truman - The major issue at Potsdam was the question of how to handle Germany.
-
Dwight D. Eisenhower - was the name given to the national security policy of the United States during the administration of President Dwight D. Eisenhower.
-
William McKinley - to introduce a new constitution, which would place the government of the Islands much more completely in her power than it had previously been.
-
John F. Kennedy - 1400 Cuban exiles launched what became a botched invasion at the Bay of Pigs on the south coast of Cuba.
-
Lyndon Johnson - was one of the largest military campaigns of the Vietnam War, launched on January 30, 1968, by forces of the Viet Cong and North Vietnamese People's Army of Vietnam against the forces of the South Vietnamese Army of the Republic of Vietnam, the United States, and their allies.
-
Richard Nixon - s the easing of strained relations, especially in a political situation.
-
Jimmy Carter - was one part of a number of actions initiated by the United States to protest the Soviet invasion in Afghanistan
-
Bill Clinton - is an agreement signed by Canada, Mexico, and the United States, creating a trilateral trade bloc in North America.
