MOSCOW (AP) — The top diplomats of Russia and Japan held talks Monday about disputed islands in the Pacific as Moscow sought to temper Japanese expectations of an imminent deal. Russian Foreign Minister Sergey Lavrov opened the negotiations with Japanese counterpart Taro Kono by warning Tokyo against engaging in "unilateral rhetoric" regarding the territorial dispute — a stern statement signaling tough talks when the Japanese leader visits Moscow later this month. The Soviet Union took the four southernmost Kuril Islands during the final days of World War II.