After World War II, Japan underwent significant changes during the postwar period. The country faced devastation from the war, leading to a focus on rebuilding its economy and infrastructure. The United States played a crucial role in this process through the Marshall Plan, providing financial aid and support for reconstruction efforts. In 1947, Japan adopted a new constitution that emphasized democracy and human rights. The Japanese economy began to grow rapidly in the 1950s, leading to the emergence of Japan as a major global economic power. This period also saw cultural shifts, with influences from Western society becoming more prominent.