Swedish Prime Minister Ulf Kristersson speaks during the NATO ratification ceremony with US Secretary of State Antony Blinken at the US State Department, as Sweden formally joins the North Atlantic alliance, in Washington, DC, on March 7, 2024. automation ...

Poland has activated NATO's Article 4 following the interception and destruction of Russian drones in its airspace, marking a significant breach as it is the first instance of such action over a NATO nation.

At a Nato Summit in June, the alliance's 32 members restated their "ironclad commitment to collective defence", known as Article 5, and agreed to boost defence spending after months of pressure from US President Donald Trump. Poland says up to four of 19 Russian drones shot down after entering airspace

Three Russian fighter jets entered Estonian airspace for several minutes Friday, before leaving again, according to the NATO country.

Nato faces fresh scrutiny after Poland’s airspace was breached by Russian drones, raising questions about security, neutrality, and Ireland’s role

Stockholm has announced that it intends to raise a further $3.38 billion (SEK 31.5 billion) for Ukraine’s defense in 2026, while also officially extending support until 2027.

Several European officials described the incursion as intentional and a sign of Russian escalation. Tusk said it was "the closest we have been to open conflict since World War Two" but that he had "no reason to believe we're on the brink of war".