Japan Self-Defense Forces in order to make it illegal for JSDF personnel/staff to participate in collective insubordination or to command forces without authority or in violation of orders, which was stated to be the reason why Japan was involved in China in World War II. A Credit Suisse survey published in 2015 ranked Japan as the world’s fourth most-powerful military behind the United States, Russia and China. In May 2017, Japanese Prime Minister Shinzo Abe set a 2020 deadline for revising the Article 9 of the Japanese Constitution, a clause in the national Constitution of Japan outlawing war as a means to settle
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