International Battles, Wars, Conflicts and Treaties

World War I was fought between two major alliances of countries: the Allied Powers and the Central Powers. The Central Powers began as an alliance between Germany and Austria-Hungary. Later the Ottoman Empire and Bulgaria became part of the Central Powers.

The Attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service against the United States naval base at Pearl Harbor, Hawaii Territory, on the morning of December 7, 1941. The attack, also known as the Battle of Pearl Harbor, led to the United States’ formal entry into World War II.