February 6, 1778
France formally entered the American Revolution by signing the Treaty of Alliance with the United States, providing crucial military and financial support that ultimately helped secure American independence from British rule.
December 11, 1941
The United States Congress unanimously declared war on Nazi Germany on December 11, 1941, following Hitler's declaration of war on the US. This historic decision came four days after the Japanese attack on Pearl Harbor and marked America's full entry into World War II.
March 12, 1947
The Cold War emerged as a global conflict between the United States and Soviet Union following World War II, marked by ideological differences, military tensions, and the formation of opposing alliances.
April 4, 1949
The North Atlantic Treaty Organization (NATO) was established in Washington D.C. with twelve founding members, creating a military alliance based on collective defense principles to counter Soviet influence in Europe.
May 14, 1955
The Warsaw Pact was established on May 14, 1955, as a military alliance between the Soviet Union and seven Eastern European communist states. It emerged as a direct response to NATO's expansion and West Germany's integration into Western alliance structures.