A Russian and a Ukrainian flag float side by side as armed men in military fatigues block access to a Ukrainian border guards base not far from the village of Perevalne near Simferopol on March 2, 2014. About 1,000 armed men surrounded the base of the 36th detached brigade of the Ukrainian Navy's coastal guards today in a tense standoff in the flashpoint Crimea peninsula. Ukraine's new leaders announced a full mobilisation of the army today, a day after Moscow officially approved the deployment of its troops to its western neighbour. AFP PHOTO / GENYA SAVILOV

A Russian and a Ukrainian flag float side by side as a man watches armed men in military fatigues blocking access to a Ukrainian border guards base not far from the village of Perevalne near Simferopol on March 2, 2014. About 1,000 armed men surrounded the base of the 36th detached brigade of the Ukrainian Navy's coastal guards today in a tense standoff in the flashpoint Crimea peninsula. Ukraine's new leaders announced a full mobilisation of the army today, a day after Moscow officially approved the deployment of its troops to its western neighbour. AFP PHOTO / GENYA SAVILOV