Pallada was a frigate and the flagship of Admiral Yevfimy Putyatin during his visit to Japan in 1853. During the expedition, she was commanded by Admiral Ivan Unkovsky. These efforts culminated in the signing of the Treaty of Shimoda, a commercial treaty between Russia and Japan in 1855. Pallada arrived in Nagasaki on August 12, 1853, just one month after the first visit of Commodore Perry.