RAF jets join Nato air defence mission over Poland

British fighter jets have conducted a Nato air defence mission over Poland as part of an allied response to Russian drone incursions into Polish airspace, the Ministry of Defence said. The RAF Typhoon jets were deployed over Poland on Friday night as part of the military alliance's mission to bolster its eastern flank. Tensions have escalated following repeated Russian violations of Nato members' airspace this month - with a drone detected over Romania and then warplanes in Estonia's airspace following the incursions into Poland. Russia has denied or downplayed the violations. Defence Secretary John Healey said the RAF flights sent a clear signal: Nato airspace will be defended.