Editing Diplomatic history (section)

===Japanese-American relations===
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.<ref>Saho Matusumoto, "Diplomatic History" in Kelly Boyd, ed., ''The Encyclopedia of Historians and Historical Writing'' (1999) pp 314-165</ref>  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.