Should the U.S. provide military assistance to defend Ukraine from Russia?

In March 2014, Russian soldiers entered Ukraine and took control of several strategic positions within the country. The following month the Ukrainian parliament declared that its territory was officially being occupied by Russia. The invasion was immediately condemned by the U.S. and other U.N. member states as a direct invasion of a sovereign country and an act of war. In response NATO countries began military exercises in the region including the addition of 600 U.S. ground troops in Poland. Opponents of military action argue that the conflict the U.S. should not get involved in regional…   conflicts that do not directly threaten the U.S. Proponents argue that Russian military aggression against Ukraine threatens the balance of power in the region and the U.S. military should directly aid Ukrainian forces to prevent the conflict from spreading to Europe.