Russia threatened to escalate attacks in Ukraine after the British government announced it would provide to Ukraine a type of munition that Moscow falsely claims has nuclear components. The British defense ministry on Monday confirmed it would provide Ukraine with armor-piercing rounds containing depleted uranium. Such rounds were developed by the U.S. during the Cold War to destroy Soviet tanks, including the same T-72 tanks that Ukraine now faces in its push to break through a stalemate in the east.