President Biden will allow Ukraine for the first time to use U.S.-supplied long-range missiles to strike deeper inside Russia, U.S. officials said. The permission to use the missiles, called Army Tactical Missile Systems, or ATACMS, came in response to Russia's decision to bring North Korean troops into the fight, officials said. The weapons are likely to be initially used in defense of Ukrainian forces in the Kursk region of western Russia, the officials said.