Deputy President of the European Parliament Katharina Barley said that the European Union may consider creating its own nuclear arsenal. Donald Trump said the United States would not protect NATO allies who do not meet the alliance's defense spending requirements from a hypothetical attack by Russia.

“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.