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
Russo-Persian War (1826–1828) Russo-Persian War (1826–1828) The Russo-Persian War of 1826–28 was the last major military conflict between the Russian Empire and Iran. After the Treaty of Gulistan that concluded the previous Russo-Persian War in 1813, peace reigned in the Caucasus for thirteen years. However, Fath 'Ali Shah, constantly in need of foreign subsidies, relied on the advice of British agents, who pressed him to reconquer the territories lost to Russia and pledged their support for military action. The matter was decided upon in spring 1826, when a bellicose party of Abbas Mirza prevailed in Tehran and the Russian minister, Aleksandr Sergeyevich Menshikov,