 Complete the following phrase:  Under the Nara period Ritsuryō system, the area that is now Kanagawa Ward became part of Tachibana District in Musashi Province. During the Edo period, the area was tenryō territory controlled directly by the Tokugawa shogunate, but administered through various hatamoto. The area prospered in the Edo period as Kanagawa-juku, a post station on the Tōkaidō connecting Edo with Kyoto. During the Bakumatsu period, Kanagawa was the location of the signing of the Convention of Kanagawa, which ended Japans national isolation policy and led to the normalization of diplomatic relations between the United States and Japan. The subsequent 