Russian President Vladimir Putin's war in Ukraine and President Trump's tough stance on NATO have 'energized' the alliance into action, experts explain unique circumstances that led to unprecedented commitments.

Russia has advanced around Pokrovsk for many months, but has so far failed to entirely encircle or seize control of the city.

The British defense chief is expected to urge Ukraine’s Western partners at the meeting to launch a “50-day drive” to get Kyiv the weapons it needs to fight Russia’s bigger army.

Citizens of Poland have been urged to leave Russia after the country, which is a member of NATO, was recognised as a hostile state

Poland's scrambling of aircraft comes amid heightened tensions across the alliance's eastern flank over Russia's aggression. It follows another NATO member, Romania, announcing it would implement an Iron Dome defense system similar to that used by Israel.

NATO's enhanced ground capabilities in the Baltic region spark Russian warnings as military focus intensifies on Kaliningrad and the strategic Suwalki Corridor

The barrage of exploding drones and missiles appeared to be the most intense attack since President Trump announced a plan to get more weapons for Kyiv.