German Chancellor Angela Merkel called on Tuesday for an integrated European Union military, echoing language used by French President Emmanuel Macron last week that infuriated US President Donald Trump.

Merkel told the European Parliament such an army would not undermine the US-led military alliance NATO but would be complementary to it, remarks that were met with loud applause in the legislature though also with boos from nationalist members.

"The times when we could rely on others are over. This means we Europeans have to take our fate fully into our own hands," Merkel said.

"We should work on a vision of one day establishing a real European army."

Macron's call, which reflected a broad trend of EU thinking but is not universally accepted, was meant to show European willingness to meet US demands that Europe do more for its own security and rely less on America's security umbrella.

However, on Twitter on November 9, Trump accused Macron of seeking to develop the EU's own military to defend itself from the United States, which EU and French officials said was a misunderstanding.

On Tuesday Trump took aim at Macron again, blasting France over its near defeat to Germany in two world wars, its wine industry and Macron's approval ratings.

In his remarks on November 6, Macron had been referring to computer hackers who could attack Europe from anywhere, including from inside the United States, officials said.

First proposed in the 1950s and taken up four years ago by European Commission President Jean-Claude Juncker as a response to fraying EU unity, an EU armed forces is seen as strengthening the global power of the bloc, which is an economic giant but a geopolitical minnow.

In comments following Ms Merkel's speech, Maltese MEP Miriam Dalli said she did not agree with Ms Merkel's vision of a united EU army. 

"We are a neutral country and we were one of three countries to stay out of a new defence and security cooperation agreement," Dr Dalli noted.