List of ambassadors of the United States to Japan
The ambassador of the United States of America to Japan (Japanese: 駐日本国アメリカ合衆国大使, Hepburn: Chū Nihonkoku Amerika Gasshūkoku Taishi) is the ambassador from the United States of America to Japan. == History == Beginning in 1854 with the use of gunboat diplomacy by Commodore Matthew C. Perry, the U.S. has maintained diplomatic relations with Japan, except for the ten-year period between the attack on Pearl Harbor in 1941 (and the subsequent declaration of war on Japan by the United States) and the signing of the Treaty of San Francisco, which normalized relations between the United States and Japan.
Source: Wikipedia — List of ambassadors of the United States to Japan (CC BY-SA 4.0)