Azerbaijan destroys Armenia air defence system in disputed region

Azerbaijan has destroyed an Armenian air defence system in the breakaway Nagorny Karabakh region, officials in Baku said Tuesday, as separatist authorities vowed retaliation, raising tensions in the festering conflict.Ex-Soviet Azerbaijan and Armenia are locked in a protracted conflict over the disputed region, and frequent exchanges of fire nearly spiralled into all-out war last year."Azerbaijani forces destroyed on Monday an Armenian Osa air defence system and its crew in the Fisuli-Khojavend