The Russian and Chinese navies have practiced hunting and destroying an enemy submarine in the Sea of Japan, Russia's defence ministry said on Wednesday, days after U.S. President Donald Trump said he had moved two U.

The Kremlin warned Monday against “nuclear rhetoric” after President Trump repositioned two nuclear submarines because of what he called “foolish and inflammatory statements” by former Russian president Dmitry Medvedev.

President Trump said Friday the U.S. is positioning two nuclear submarines in “appropriate regions” near Russia, a move he blamed on threatening rhetoric from former Russian President Dmitry Medvedev,