Sen. Bill Nelson (D-Fla.), a senior member of the Senate Armed Services Committee, will travel to Ukraine this week, hoping the conflict at the Russian border is nearing an end but willing to push the U.S. government to send weapons if the conflict drags on. Nelson told reporters Monday afternoon that he had received news the situation in Eastern Ukraine is about to come to a head–Ukraine’s army has surrounded rebels in the stronghold of Donetsk and in nearby Luhansk,…