Russian President Vladimir Putin has hosted talks in Sochi between the leaders of Armenia and Azerbaijan, who have been engaged in an escalating two weeks of border clashes.<br /><br />The fighting has claimed many lives and threatens to restart a war that is only tentatively halted with a ceasefire that has been in force since 1994.<br /><br />The violence is over Nagorno-Karabach, an Armenian enclave in the heart of Azerbaijan that Armenia seized in a brief and bloody war when the Soviet Union collapsed. There have been sporadic border incidents and clashes ever since, but this flare-up is one of the worst.<br /><br />The Azeris have been spending a lot of their new oil wealth on beefing up their army, and many are keen to regain the territory and exact revenge.
