The war in Ukraine and the existential threat that Russia poses to European security has topped NATO’s agenda in each of its summits since 2022.

Ukraine has been invited to a NATO summit in The Hague this month, Mark Rutte, the military bloc's chief, said on Wednesday, without specifying whether this meant Ukranian President Volodymyr Zelenskiy would attend.

John Healey, the British defence secretary, said the NATO ally is "stepping up its support for Ukraine" with a £4.5 billion ($6 billion) package of military aid in 2025, and that the U.K. has completed a delivery of 140,000 artillery munitions since the start of the year.