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
Fifty-Year Peace Treaty to receive an annual subsidy of 30,000 gold "nomismata", with the first seven years payable immediately. The Christians in the Sassanid Empire were promised freedom of religion. The peace treaty was to last for 50 years, but it remained in effect only until 572, when the two empires went into another war. Fifty-Year Peace Treaty The Treaty of Dara, also known as the Fifty-Year Peace, was a peace treaty concluded between the Byzantine (Eastern Roman) and Sassanid (Persian) empires at the frontier town of Dara in what is now southern Turkey in 562. The treaty, negotiated by Peter the Patrician