Eleven Japanese delegates were submitted in advance for the September 2, 1945 surrender ceremony.
Only two of the eleven actually signed the Instrument of Surrender: Foreign Minister Mamoru Shigemitsu for the Japanese government and General Yoshijirō Umezu for Imperial General Headquarters. The other delegates served as accompanying representatives from Japan’s army, navy, and Foreign Ministry.
The complete list was provided to the Allies before the ceremony, but security concerns meant that only the two signatories were initially revealed to the press. The delegation traveled from Tokyo to Yokohama and then boarded a smaller vessel for USS Missouri, which was anchored in Tokyo Bay.
The number eleven should not be confused with the Allied signatories. MacArthur signed for the Allied powers, followed by representatives of nine individual Allied governments. The ceremony was therefore a carefully structured international event rather than a simple bilateral signing.