'Gatherer of Russian lands': Behind Putin's obsession with Ukraine

Russian President Vladimir Putin has recognised the independence of 2 pro-moscow regions in eastern Ukraine. The Kremlin has stated that NATO backing for Ukraine poses a threat on Russia's western flank. All eyes are now on how Ukrainian forces respond to Putin's bold move; any counterattack may lead to a war. Ukraine was a crucial part of the Soviet Union, with deep economic & cultural ties to Russia. Putin has repeatedly tried to bring Ukraine back into the Russian sphere of influence. Experts say Putin now sees Ukraine as a question of his legacy as 'gatherer of Russian lands'. Watch the full video for more.