In the battle between Russian-backed Ukrainian separatists and U.S.-backed national Ukrainian troops, the help each force gets from the outside does not add up to a fair fight.
Moscow supplies sophisticated rocket launchers and missiles.
Washington provides radios, body armor, first aid kits, night vision goggles, sleeping mats and other non-lethal aid.
Russian President Vladimir Putin gives the separatists "exactly what they were short of," said Stephen Blank, an analyst at the American Foreign Policy Institute.
By contrast, the Obama administration has rejected similar support to Ukraine's national government, saying its goal is to de-escalate tensions and achieve a broader peace, not further inflame the conflict.
Obama will need to supply Ukraine with more than band-aides and sleeping mats or Putin will soon annex most of eastern Ukraine as he did Crimea.