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
Latvian–Soviet Peace Treaty to capture the capital, Riga, and a Soviet Government replaced Ulmanis. Germany sent troops to help Latvia oust the Bolshevik troops, but after this was accomplished the Germans refused to leave, in violation of the Treaty of Versailles. After the Estonian Army 3rd Division and the Latvians expelled the German troops, the Soviet troops once again advanced onto Riga. These troops were pushed out of Latvia by early 1920. A Latvian–Soviet Peace Treaty then formally ended Latvia's War for Independence. The treaty had twenty-three articles and dealt with the sovereignty of the state of Latvia. The first article stated that