Rimpac 2025 July 2025. This year’s rimpac will host its largest humanitarian aid and disaster relief exercise with eight countries, five ships, five landing craft, five aircraft, multiple land. Rimpac 2025 consists of 29 participating nations, 40 surface ships, three submarines, 14 national land forces, over 150 aircraft and more than 25,000 personnel.

Rimpac 2025 consists of 29 participating nations, 40 surface ships, three submarines, 14 national land forces, over 150 aircraft and more than 25,000 personnel. Rimpac 2025 is the 29th exercise in the series that began in 1971.