Which country was NOT a participant in the Exercise Sea Dragon 2025 conducted by Indo-Pacific nations?

Exercise Sea Dragon 2025, a multilateral naval warfare drill focusing on anti-submarine warfare tactics, was conducted from March 6-19, 2025, off the coast of Guam in the western Pacific Ocean. The participating nations included India, Japan, Australia, South Korea, and the United States (host). New Zealand was not among the participants in the 2025 edition. The exercise, hosted by the US Navy's 7th Fleet, emphasized improving interoperability, maritime security, and submarine tracking techniques through tactical coordination, simulated submarine hunting, and real-time intelligence sharing. Each country deployed its Maritime Patrol and Reconnaissance Aircraft, with India utilizing its P-8I aircraft.