The Japan Self-Defense Forces (自衛隊 Jieitai), or JSDF, occasionally referred to as JSF or SDF, are the unified military forces of Japan that were established after the end of the post–World War II. In recent years they have been engaged in international peacekeeping operations. Recent tensions, particularly with North Korea, have reignited the debate over the status of the JSDF and its relation to Japanese society. New military guidelines, announced in December 2010, will direct the Jieitai away from its Cold War focus on the Soviet Union to a focus on China, especially regarding the dispute over the Senkaku Islands.