Military history of Japan maintains a powerful defense force today, its Constitution, originally drawn under the guidelines of General Douglas MacArthur in 1945, formally renounces war and the use of military force in aggressive ways. Japan also maintains a policy against the exporting of military hardware. In September 2015, the Liberal Democratic Party under the leadership of Prime Minister Shinzo Abe, reinterpreted the Constitution, allowing Japan to use military force in assistance of its allies. The legality of these changes has been questioned by many academics and citizens. From 1867, Japan requested various Western military missions in order to help Japan to modernize its
Public holidays in Japan Public holidays in Japan Prior to Japan's adoption of the Gregorian calendar in 1873, the dates of holidays were based on the traditional Chinese lunisolar calendar. Thus, New Year's Day, for example, was celebrated at the beginning of spring, as it is in modern China, Korea and Vietnam. Japan has 16 national, government-recognized holidays. The national holidays in 2018 are as follows. <nowiki>*</nowiki> When a holiday falls on a Sunday it is celebrated the following Monday. The national holidays in 2019 are as follows. <nowiki>*</nowiki> When a holiday falls on a Sunday it is celebrated the following Monday. In addition