President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE will welcome NATO Secretary General Jens Stoltenberg to the White House next week, ahead of the alliance's annual summit in July.

White House press secretary Sarah Huckabee Sanders said in a statement that the May 17 visit by Stoltenberg will focus on the upcoming NATO Summit, the alliance's role in combatting terrorism and "the need for fair-burden sharing."

Trump has repeatedly complained that the U.S. shoulders too much of the financial burden of NATO and has called on member states to increase military funding to meet the alliance's spending goals.

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NATO members agreed in 2014 to move toward spending at least 2 percent of their respective gross domestic products on defense by 2024.

Trump's upcoming meeting with Stoltenberg also comes following the president's decision to withdraw the U.S. from the Iran nuclear deal — a move that frustrated Washington's European allies, who urged Trump to remain in the pact.

Trump has had a rocky relationship with NATO, at times. Last year, he faced scrutiny after he failed to reaffirm the alliance's mutual defense pledge, which holds that NATO members must come to the defense of other alliance members if necessary.

That pledge was upheld by past U.S. presidents. Trump later said that the U.S. remained committed to NATO's mutual defense provision.