SEOUL, South Korea, Aug 7, (AP): South Korea and the United States will launch their annual large-scale military exercise this month to bolster readiness against North Korean threats, the allies said Thursday, in a move likely to irritate Pyongyang amid a prolonged stalemate in diplomacy. The exercise also comes against the backdrop of concerns in Seoul that the Trump administration could shake up the decades-old alliance by demanding higher payments for the US troop presence in South Korea and possibly move to reduce it as Washington puts more focus on China.

Ulchi Freedom Shield, the second of two large-scale exercises held annually in South Korea, following another set of drills in March, typically involves thousands of troops in computer-simulated command post training and combined field exercises. The Aug. 18-28 exercise may trigger an angry reaction from North Korea, which calls the joint drills invasion rehearsals and often uses them as a pretext to dial up military demonstrations and weapons tests aimed at advancing its nuclear program.

Doubling down on its nuclear ambitions, North Korea has repeatedly rejected Washington and Seoul’s calls to resume diplomacy aimed at winding down its weapons program, which derailed in 2019. The North has now made Russia the priority of its foreign policy, sending thousands of troops and large amounts of military equipment to support Moscow’s war in Ukraine.

About 18,000 South Korean troops will take part in this year’s Ulchi Freedom Shield exercise, South Korea’s Joint Chiefs of Staff spokesperson, Col. Lee Sung Joon, said during a joint briefing with US  Forces Korea, which did not disclose the number of participating US troops. Both Lee and S Forces Korea public affairs director Col. Ryan Donald downplayed speculation that South Korea’s new liberal government, led by President Lee Jae Myung, sought to downsize the exercise to create momentum for dialogue with Pyongyang, saying its scale is similar to previous years. However, Col. Lee said about half of the exercise’s originally planned 40 field training programs were postponed to September due to heat concerns.