With the recent collapse of a treaty between them, the U.S. and Russia are now technically able to deploy intermediate-range missiles around the world. But China has reportedly warned South Korea and Japan not to host such weapons.
According to Japan's Asahi Shimbun, China's foreign minister Wang Yi told his South Korean and Japanese counterparts during their talks in August that should Seoul and Tokyo deploy U.S. missiles, it will severely impact their relations with Beijing.
According to the report, South Korean foreign minister Kang Kyung-wha responded by saying China should first withdraw its retaliatory measures regarding Seoul's deployment of the THAAD anti-missile system.
That was around the time the Washington withdrew from the Intermediate-Range Nuclear Forces Treaty, accusing Russia of violating it.