Barley said this in an interview with the Tagesspiegel newspaper.
Earlier, Donald Trump said that the United States would not protect NATO allies who do not meet the alliance's defense spending requirements from a hypothetical attack by Russia.
As Barley recalled, the North Atlantic Alliance is currently responsible for the nuclear deterrence of Europe’s potential enemy.
“This issue can be brought up for consideration on the way to creating a pan-European army,” said a European official, answering a question about whether the EU needs its own atomic warheads.
The leader of the French Patriot movement, Florian Philippot, expressed the opinion that Trump’s statement dealt a second blow to the authority of the North Atlantic Alliance following the interview of Russian President Vladimir Putin with American journalist Tucker Carlson.