Directory
Secretaries of State of the United States:
- Stimson, Henry L., March 5, 1929–March 4, 1933
- Hull, Cordell, March 4, 1933–
United States Ambassadors in Japan:
- Forbes, William Cameron, June 17, 1930–March 22, 1932
- Grew, Joseph Clark, February 19, 1932–December 7, 1941
Prime Ministers of Japan:
- Wakatsuki, Baron Reijiro, April 14, 1931–December 11, 1931
- Inukai, Ki, December 13, 1931–May 15, 1932
- Saito, Admiral Viscount Makoto, May 26, 1932–July 3, 1934
- Okada, Admiral Keisuke, July 8, 1934–February 26, 1936
- Hirota, Koki, March 9, 1936–January 23, 1937
- Hayashi, General Senjuro, February 2, 1937–May 31, 1937
- Konoye, Prince Fumimaro, June 4, 1937–January 4, 1939
- Hiranuma, Baron Kiichiro, January 5, 1939–August 28, 1939
- Abe, General Nobuyuki, August 30, 1939–January 14, 1940
- Yonai, Admiral Mitsumasa, January 16, 1940–July 16, 1940
- Konoye, Prince Fumimaro, July 22, 1940–October 16, 1941
- Tojo, General Hideki, October 18, 1941–
Japanese Ministers for Foreign Affairs:
- Shidehara, Baron Kijuro, July 2, 1929–December 11, 1931
- Inukai, Ki, December 13, 1931–January 14, 1932
- Yoshizawa, Kenkichi, January 14, 1932–May 16, 1932
- Saito, Admiral Viscount Makoto, May 26, 1932–July 6, 1932
- Uchida, Count Yasuya, July 6, 1932–September 14, 1933
- Hirota, Koki, September 14, 1933–April 2, 1936
- Arita, Hachiro, April 2, 1936–January 23, 1937
- Sato, Naotake, March 3, 1937–May 31, 1937
- Hirota, Koki, June 4, 1937–May 26, 1938
- Ugaki, General Kazushige, May 26, 1938–September 30, 1938
- Arita, Hachiro, October 29, 1938–August 28, 1939
- Nomura, Admiral Kichisaburo, September 25, 1939–January 14, 1940
- Arita, Hachiro, January 16, 1940–July 16, 1940
- Matsuoka, Yosuke, July 22, 1940–July 16, 1941
- Toyoda, Admiral Teijiro, July 18, 1941–October 16, 1941
- Togo, Shigenori, October 18, 1941–September 1942
Japanese Ambassadors in the United States:
- Debuchi, Katsuji, October 24, 1928–February 13, 1934
- Saito, Hirosi, February 13, 1934–December 22, 1938
- Horinouchi, Kensuke, December 22, 1938–October 20, 1940
- Nomura, Admiral Kichisaburo, February 14, 1941–December 7, 1941