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
Perso-Roman Peace Treaty of 363 Perso-Roman Peace Treaty of 363 The Peace Treaty of 363 between the Eastern Roman Empire and the Sassanid Persian Empire was the consequent treaty from the catastrophic Roman defeat in the war of 363 in which a large Roman army led by the emperor, Julian the Apostate, was trapped and forced into signing a humiliating treaty by which numerous territorial and diplomatic concessions were given to the Persians. After his accession to the Roman throne in A.D. 361 upon the death of his cousin Constantius II., Julian resolved to continue the war which his predecessor had maintained against Sassanid Persia