Japan's Emperor Akihito and new U.S. Ambassador to Japan William Hagerty shake hands during an attestation ceremony at the Imperial Palace in Tokyo

Japan’s Emperor Akihito and new U.S. Ambassador to Japan William Hagerty shake hands during an attestation ceremony at the Imperial Palace in Tokyo

Japan's Emperor Akihito and new US Ambassador to Japan William Hagerty shake hands during an attestation ceremony at the Imperial Palace in Tokyo, in this handout picture taken August 31, 2017 and provided by the Imperial Household Agency of Japan. Imperial Household Agency of Japan/Handout via Reuters ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY.

September 29, 2017 5:48 PM (UTC+8)