Nato scrambles fighter jets after Russian incursion into Lithuania's airspace

Putin's military aircraft are spotted in Lithuanian airspace

UK warns Putin after 'serious escalation' as it completes RAF jets NATO mission - The Mirror

Putin warned UK 'won't hesitate to act' as he taunts NATO raising WW3 fears

Russian jets over Estonia 'ignored signals from NATO pilots'

Russian jets over Estonia ignored signals from NATO pilots, officials say - The Boston Globe

Russian jets over Estonia ignored signals from NATO pilots, officials say

NATO nation's defense minister calls for shooting down Russian warplanes -- RT World News

BBC World Service - Newshour, Estonia seeks NATO talks after Russian jets violate airspace

How the war in Ukraine has already become a European conflict