NATO

U.S. troops and tanks will deploy across the three Baltic states and Poland in the next two weeks on a mission designed to deliver an unmistakeable message of NATO resolve to Moscow.

(Reuters) - Any increase in Russian troops in Ukraine's Crimea region would raise tensions and undermine the ceasefire in eastern Ukraine, NATO said on Tuesday. 

Russia earlier said it might send more troops to its newly-annexed territory of Crimea,

Polish APC movement during Russian intervention in Crimea Ukraine as the reaction of Polish government at Russian military invasion into Ukraine's Crimea

Polish army alerted during Russian intervention in Crimea Ukraine, meanwhile military equipment relocates towards Ukrainian border