A Ukrainian serviceman stands guard at a checkpoint outside the village of Chongar, in the Kherson region adjacent to Crimea, March 19, 2014. Ukraine could review its membership of the ... more 
A Ukrainian serviceman stands guard at a checkpoint outside the village of Chongar, in the Kherson region adjacent to Crimea, March 19, 2014. Ukraine could review its membership of the Moscow-dominated Commonwealth of Independent States (CIS) following Russia's move to incorporate the Crimea peninsula, the Foreign Ministry said on Wednesday. REUTERS/Valentyn Ogirenko (UKRAINE - Tags: POLITICS MILITARY) less 
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Reuters | Photo By VALENTYN OGIRENKO / REUTERS
Wed, Mar 19, 2014 11:02 AM EDT