The Labor Standards Act (労働基準法 roudou-kijunhou?) is a Japanese law. It was enacted on 7 April 1947 to govern working conditions in Japan. According to Article 1 of the Act, its goal is to ensure that "Working conditions shall be those which should meet the needs of workers who live lives worthy of human beings."
As the Second World War was nearing its end, on 26 July 1945, Allied leaders Winston Churchill, Harry S Truman, and Chiang Kai-shek issued the Potsdam Declaration, which demanded Japan's unconditional surrender. This declaration also defined the major goals of the postsurrender Allied occupation: "The Japanese government shall remove all obstacles to the revival and strengthening of democratic tendencies among the Japanese people. Freedom of speech, of religion, and of thought, as well as respect for the fundamental human rights shall be established" (Section 10). In addition, the document stated: "The occupying forces of the Allies shall be withdrawn from Japan as soon as these objectives have been accomplished and there has been established in accordance with the freely expressed will of the Japanese people a peacefully inclined and responsible government" (Section 12). The Allies sought not merely punishment or reparations from a militaristic foe, but fundamental changes in the nature of its political system. In the words of political scientist Robert E. Ward: "The occupation was perhaps the single most exhaustively planned operation of massive and externally directed political change in world history."
After the Japanese surrender on 15 August 1945, allied forces, mostly American, rapidly began arriving in Japan. Almost immediately, the occupiers began an intensive program of legal changes designed to democratize Japan.