Симодский трактат
Although Putiatin was lionized after his return to St Petersburg, and was elevated to the title of Count, he was also criticized for the lack of a commercial agreement with Japan, and was forced to return in 1857 and again in 1858 to negotiate new treaties, which expanded on Russian commercial rights and extraterritoriality. One of the most important features of the 1855 Treaty of Shimoda was the agreement that the Kurile Islands were to be divided between Russia and Japan at a line running in between Etorofu and Urup, and the treaty is still frequently cited to this date by the Japanese government as one of its justifications in the current Kurile Islands dispute.