Trump says he is not sure US should be spending anything on NATO

FILE PHOTO: Banners displaying the NATO logo are placed at the entrance of new NATO headquarters during the move to the new building, in Brussels, Belgium April 19, 2018. REUTERS/Yves Herman/File Photo

WASHINGTON (Reuters) -U.S. President Donald Trump on Thursday said he was not sure the United States should be spending anything on NATO, telling reporters the U.S. was protecting NATO members, but they were "not protecting us."

Trump earlier demanded that other members of the transatlantic alliance spend 5% of their gross domestic product (GDP) on defense – a huge increase from the current 2% goal and a level that no NATO country, including the United States, currently achieves.