President Donald Trump said he was “very disappointed” with NATO upon arriving at the alliance summit in Ankara, Turkey [1].

The comments signal a deepening rift between the U.S. and its European allies regarding military spending and the strategic future of the transatlantic partnership.

The summit, which took place July 7-8 [2], served as a backdrop for the president to criticize member nations for what he described as insufficient burden-sharing. Trump said that the alliance relies too heavily on U.S. military power while other members do not contribute enough [1].

Trump said that his decision to attend the meeting was influenced by the host nation. He said that if the summit had not been held in Turkey, led by a person he described as a friend and powerful leader, he might not have attended [1].

Beyond the scope of the alliance's spending, Trump made assertions regarding territorial governance. He said that Greenland should be governed by the U.S. rather than Denmark [1].

These statements highlight a continuing tension regarding the reciprocity of defense agreements. Trump said that while the U.S. provides help, it is unclear if Europe would do the same in return [1].

“NATOに非常に失望した。”

The president's rhetoric in Ankara underscores a transactional approach to international diplomacy, where alliance membership is contingent upon financial contributions and perceived national gain. By questioning the reliability of European allies and suggesting the acquisition of Greenland, the U.S. administration is challenging the traditional post-WWII security architecture and pressuring NATO members to increase their defense spending to avoid further U.S. alienation.