Washington, April 3 -- NATO Secretary General Mark Rutte is preparing for a high-stakes meeting with President Donald Trump next week, amid growing American dissatisfaction over the alliance's perceived lack of support regarding the conflict in Iran.

According to a press release issued on Friday, Rutte's itinerary also includes discussions with US Secretary of State Marco Rubio and Secretary of War Pete Hegseth. The scheduled talks come at a critical juncture, as Trump has openly questioned the utility of the 77-year-old military pact.

The President has indicated he is contemplating a withdrawal from the alliance, citing the underwhelming response from European partners toward his military campaign. Specifically, the American leader has...