Treaty of Portsmouth Treaty of Portsmouth The Treaty of Portsmouth formally ended the 1904–05 Russo-Japanese War. It was signed on September 5, 1905 after negotiations lasting from August 6 to August 30, at the Portsmouth Naval Shipyard in Kittery, Maine, United States. U.S. President Theodore Roosevelt was instrumental in the negotiations and won the Nobel Peace Prize for his efforts. The war of 1904–05 was fought between the Empire of Russia, an international power with one of the largest armies in the world, and the Empire of Japan, a nation which had only recently industrialized after two-and-a-half centuries of isolation. A series of
Peace treaty peace treaties known as the Peace of Westphalia. It initiated modern diplomacy, involving the modern system of nation-states. Subsequent wars were no longer over religion, but rather revolved around issues of state. This allowed Catholic and Protestant powers to ally, leading to a number of major realignments. The Korean War is an example of a conflict that was ended by an armistice rather than a peace treaty with the 1953 . The Korean War has never technically ended because a final peace treaty or settlement has not been achieved. A more recent example of a peace treaty is the 1973