Ukraine

Russia has stepped up support for Ukrainian separatists believed responsible for the downing of the Malaysian airliner.

Carter also suggested that he would push back against attempts to "micromanage" military policy from the White House.

Lt. Gen. Ben Hodges, said Monday that his soldiers could begin training regular Ukraine army troops in November if the White...

Russia's invasion of Ukraine and annexation of Crimea has halted the military-to-military programs the U.S. has established...

The flow of weaponry from Russia to separatists in eastern Ukraine has included missile systems similar to those that brought...

A group of lawmakers from the Senate Armed Services Committee called upon the White House to provide lethal weapons to...

The U.S. Marine Corps is in the process of deploying tanks, artillery and light armored reconnaissance vehicles to Bulgaria.

Russian President Putin could move against Moldova or Ukraine, said Gen. Philip Breedlove, the U.S. commander of NATO.

The U.S. is sending a total of about 600 paratroopers to Poland and the Baltic states to bolster defenses against Russia.

The U.S. sent a small team of troops to Ukraine to aid in recovery operations for the victims of Malaysian Airlines Flight...