US President Donald Trump has taken significant steps that have strained relations with American allies as tensions rise over the ongoing conflict in Iran. He directed the Pentagon to reduce joint military exercises with South Korea, citing the need to allocate resources amidst the demands of the war in Iran. Additionally, Trump issued a threat to bomb Oman, a key mediator in the negotiations between Washington and Tehran, following the expiration of a memorandum of understanding with Iran that had been inactive for 60 days.
Trump’s Foreign Policy Approach
His critics believe Trump is striking out badly on foreign policy by making decisions built on personal squabbles rather than his critical security relationships. But his recent jabs at Muscat and Seoul are not isolated incidents. They are symptomatic of his foreign policy, which seems to stem from his gut rather than advice from diplomats and experts. But the businessman president’s abrupt move triggered concerns among Republicans and Democrats alike that the United States under Trump’s leadership is not a reliable ally and seems to suggest US disengagement from Asia. US allies from Europe to Asia are rewriting the rules of engagement by ignoring the president’s rhetoric and forging new diplomatic channels to manage a US foreign policy driven increasingly by personalities, not institutions. President Donald Trump alarmed allies by scaling back military drills with Seoul while hailing his ties with Pyongyang. Kim were at, but provided no further detail.
On Sunday, Trump took to his Truth Social platform and ordered his war secretary, Pete Hegseth, to “substantially reduce” annual joint military exercises with South Korea, designed to prepare Seoul against threats from North Korea. He said South Korea wouldn’t help with his war against Iran and cited his “good relationship” with North Korean leader Kim Jong Un in his latest instance of undermining long-standing alliances with global partners. Trump said the exercises were “costly” and inappropriate because Kim had always been “unthreatening and respectful” to him. The US president also took aim at South Korea, saying it had refused his offer to take part in what he called the “denuclearisation” of Iran. But Tehran and Muscat have been discussing for weeks future navigation arrangements through the route, and Iran’s foreign ministry said earlier Monday the two sides were working on a joint declaration. Trump’s threats, personal envoys and hollowed‑out US embassies are reshaping Washington’s presence in the world, according to a Reuters report. Earlier reporting noted: Asian allies call U.S.-South Korea security ties ‘critical’ as Trump praises Kim Japan underlined on Tuesday (August 18, 2026) that security cooperation with the United States and South Korea was “critical” for the region’s stability, after U.S. Trump abruptly announced on Sunday that he had ordered the Pentagon to scale back “inappropriate and hostile” military drills with South Korea. Trump said “it’s very positive” when asked what stage the conversations with Mr.
Earlier reporting noted: Mr.
