President Donald Trump has renewed his criticism of the North Atlantic Treaty Organization (NATO), describing the alliance as a “one-sided” arrangement and arguing that the United States bears an unfair share of the burden for Europe’s defense.

In a post on his Truth Social platform on Thursday, Trump said it was “ridiculous” for the United States to continue what he called an unequal relationship with the alliance.

“They were not there for us!!!” Trump wrote, adding that Washington’s relationship with NATO “is not reciprocal.”

The comments come less than a week before NATO leaders are scheduled to meet in Ankara, Turkey, for the alliance’s annual summit on July 7-8.

Trump has repeatedly criticized European allies in recent months, particularly over their response to the conflict involving Iran, while continuing to argue that Europe should assume greater responsibility for its own security.

His administration has already begun reducing certain U.S. defense commitments abroad as part of its broader strategy to encourage European nations to increase their military capabilities.

In Thursday’s social media post, Trump shared a chart comparing defense expenditures among NATO members, highlighting that the United States spends substantially more on defense than many of its allies.

Under sustained pressure from Trump, NATO leaders agreed at last year’s summit to work toward increasing defense spending to 5 percent of gross domestic product by 2035.

The upcoming summit in Ankara will bring together leaders from the alliance’s 32 member states to discuss collective security, defense spending and ongoing geopolitical challenges.

Founded in 1949, North Atlantic Treaty Organization has long served as the cornerstone of transatlantic security, with the United States playing a leading role in deterring threats, maintaining stability in Europe and strengthening cooperation among member nations.

Trump’s latest remarks are expected to add to discussions over burden-sharing and the future direction of the alliance as leaders prepare to convene in Turkey.