World leaders from the Nato defence alliance declare Russia a "direct threat" to their security at a summit in Madrid.
Allies will provide Ukraine with military and financial help and modern equipment, Nato's secretary-general says.
Jens Stoltenberg adds Ukraine can count on the alliance "for as long as it takes"
He also confirmed Nato would formally invite Finland and Sweden to join the alliance after Turkey dropped its opposition.
Meanwhile, at least three people have died in a Russian missile strike on a residential building in the southern city of Mykolaiv.
And Ukraine's president has called on the UN to recognise Russia as a terrorist state after Monday's strike on a shopping centre in Kremenchuk killed 20
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