WASHINGTON (AP) — The Trump administration has approved a plan to provide lethal weapons to Ukraine, a long-awaited move that deepens America's involvement in the military conflict and may further strain relations with Russia. Moscow responded angrily on Saturday.

The new arms include American-made Javelin anti-tank missiles, U.S. officials said late Friday. Ukraine has long sought to boost its defenses against Russian-backed separatists armed with tanks that have rolled through eastern Ukraine during violence that has killed more than 10,000 since 2014. Previously, the U.S. has provided Ukrai...