<P> A dispute that had boiled since 1996 regarding a base with 18,000 U.S. Marines had temporarily been resolved in late 2013 . Agreement had been reached to move the Marine Corps Air Station Futenma to a less - densely populated area of Okinawa . </P> <P> Japan's limited intelligence gathering capability and personnel are focused on China and North Korea, as the nation primarily relies on the American National Security Agency . </P> <P> In addition, because World War II was a global war, diplomatic historians start to focus on Japanese--American relations to understand why Japan had attacked the United States in 1941 . This in turn led diplomatic historians to start to abandon the previous Euro - centric approach in favor of a more global approach . A sign of the changing times was the rise to prominence of such diplomatic historians such as the Japanese historian Chihiro Hosoya, the British historian Ian Nish, and the American historian Akira Iriye, which was the first time that Asian specialists became noted diplomatic historians . The Japanese reading public has a demand for books about American history and society . They read translations of English titles and Japanese scholars who are Americanists have been active in this sphere . </P>

Japan and us relations after world war 2