Ukraine: what does Russia's Vladimir Putin want? – video

More than 2,500 people have been killed in the conflict in Ukraine, and relations between Russia and the west are more tense than at any time since the cold war. Where will this conflict end, and what are Vladimir Putin's objectives in this protracted war? In recent weeks Russian involvement has become more visible. Russia has moved an estimated 1,000 soldiers and 200 armoured patrol carriers deep into Ukrainian territory. Putin may have more to lose than to gain from an expensive and risky annexation bid