Ukrainian recruits receive instructions from a commander in a recruitment self defense quarter at Kiev's Independence Square, Ukraine, Tuesday, March 4, 2014. Russian President Vladimir Putin ordered tens of thousands of Russian troops participating in military exercises near Ukraine's border to return to their bases as U.S. Secretary of State John Kerry was on his way to Kiev. Tensions remained high in the strategic Ukrainian peninsula of Crimea with troops loyal to Moscow fired warning shots to ward off protesting Ukrainian soldiers. (AP Photo/Emilio Morenatti)

Worries on Ukraine’s border

Russia is deploying thousands of troops in its regions near the Ukrainian border and concerns are high that it could use unrest in the east …