ヤルタ秘密協定 ヤルタひみつきょうてい Meanings Noun Yalta Agreement (secret American-British-Soviet agreement wherein the Soviets agreed to attack Japan; February 11, 1945) See also: ヤルタ会談 (ヤルタかいだん). Kanji 秘 secret 密 dense. Read as ミツ. 協 cooperate. Read as キョウ. 定 fix. Read as テイ. Jinuma: Japanese Dictionary · Word lists