Four-Power Treaty
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| Part of | Washington Naval Conference |
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| Date of Reg. | |
| Date of Upd. | |
| ID | 3071373 |
About Four-Power Treaty
The Four-Power Treaty was a treaty signed by the United States, United Kingdom, France and Japan at the Washington Naval Conference on 13 December 1921. It was partly a follow-on to the Lansing-Ishii Treaty, signed between the U. S. and Japan.