Finnish PM Sanna Marin has said Europe is "not beardown enough" to basal up to Russia's penetration of Ukraine connected its own, and has had to trust connected US support.
During a sojourn to Australia, the person of the pending Nato subordinate said Europe's defences indispensable beryllium strengthened.
"I indispensable beryllium brutally honorable with you, Europe isn't beardown capable close now," she said. "We would beryllium successful occupation without the United States."
The US is by acold the largest supplier of subject assistance to Ukraine.
Since the commencement of the warfare successful February, it has committed $18.6bn (€17.7bn; £15.2bn) successful support, a probe briefing past period by the UK's House of Commons said.
The 2nd largest donor is the European Union, followed by the UK, the Kiel Institute for the World Economy says. But their contributions are dwarfed by those of the US.
And with European countries' subject stocks depleting arsenic they proviso Ukraine, Ms Marin said much needed to beryllium done to bolster European defences.
Speaking astatine the Lowy Institute deliberation vessel successful Sydney connected Friday, Ms Marin said: "The United States has fixed a batch of weapons, a batch of fiscal aid, a batch of humanitarian assistance to Ukraine and Europe isn't beardown capable yet."
She added that Europe indispensable marque definite it is "building those capabilities erstwhile it comes to European defence, European defence industry, and making definite that we could header successful antithetic kinds of situations".
While successful office, US President Donald Trump regularly criticised European countries successful Nato for not spending capable connected defence.
In 2020, it was estimated the US spent conscionable implicit 3.7% of its GDP connected defence - portion the mean for Nato's European members (and Canada) was 1.77%.
During her talk, Prime Minister Marin went connected to criticise immoderate European countries' attempts astatine gathering person ties with Russia successful caller decades.
"For a agelong time, Europe was gathering a strategy for Russia... to bargain vigor from Russia and to closen those economical ties, and we thought that this would forestall the war," she said.
But she said that mindset was "proven wholly wrong".
European countries should person listened to states similar Poland and the Baltics, she said, who had warned that Russia does not "care astir their economical ties, they don't attraction astir the sanctions, they don't attraction astir immoderate of that" erstwhile it comes to invading Ukraine.
Wide-reaching sanctions person been introduced by the EU and the US, among others, with the purpose of limiting the resources Russia has to proceed the war.
Many European Union and Nato subordinate countries person besides pledged to summation their defence spending pursuing the commencement of the war.
In February, Germany announced an extra $113bn (£84bn) for its army, and a law committedness to Nato's subject spending people of 2% of GDP.
In June, the UK - nether then-Prime Minister Boris Johnson - said its defence spending would deed 2.5% of GDP by the extremity of the decade.
All Nato members indispensable perpetrate to 2% to "to guarantee the alliance's subject readiness," Nato says. And determination person been recent calls connected Nato members to summation their defence spending to 3% of GDP.
Finland, which shares a agelong borderline with Russia, formally applied to join Nato successful May. Accession protocols were signed successful July, though they are yet to beryllium ratified by each different members.