Nearly 50 defense leaders from around the world met Monday and agreed to send more advanced weapons to Ukraine, including a harpoon launcher and missiles to protect its coast, Defense Secretary Lloyd Austin told reporters. And Gen. Mark Milley, chairman of the Joint Chiefs of Staff, said that “low-level” discussion is underway on how the U.S. may need to adjust its training of Ukrainian forces and on whether some U.S. troops should be based in Ukraine. The U.S. withdrew its few troops in Ukraine before the war and has no plans to send in combat forces. Milley’s comments left open the possibility troops could return for embassy security or another non-combat role. The U.S. embassy in Kyiv has partially reopened and is staffing up again, and there have been questions about whether the U.S. will send a Marine security force back in to help protect the embassy or if other options should be considered.