Following Japan's defeat in the Second World War, the Supreme Commander for the Allied Powers (SCAP) assumed control over the Japanese merchant marine to return repatriates to their homelands. At the start of the Korean War, those ships, together with their Japanese crews, were pressed into service by the US military to carry forces and supplies to Korea. Japanese vessels played a significant role at the Incheon and Wonsan landings. The shipping firm Tozai Kisen was among the most prominent firms involved, concluding "an agreement with the US military’s Japan Logistical Command (JLC) to provide 122 small vessels and around 1,300 crew for transport and landing work".