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NZDF bolsters North Korea sanctions enforcement with HMNZS Aotearoa and P-8A Poseidon

The New Zealand Defence Force has bolstered enforcement of United Nations Security Council (UNSC) sanctions against North Korea, deploying the Royal New Zealand Navy (RNZN) and Royal New Zealand Air Force (RNZAF) on Operation Whio.

08 December, 2025

Supporting the Pacific Security Maritime Exchange (PSMX) with the aim to curb North Korea’s nuclear and ballistic missile programmes, the replenishment vessel and maritime patrol aircraft carried out surveillance and deterrence activities in the international waters of the East China and Yellow Seas during November.

Patrolling a total area of 410,000 square kilometres, HMNZS Aotearoa’s ship’s company and embarked interrupted two possibly illicit ship-to-ship transfers, identified seven vessels of interest, hailed 49 merchant vessels and broadcast 79 deterrence messages via maritime radio.  

During the operation, the ship was shadowed by seven different People’s Liberation Army (Navy) warships, which maintained a safe and professional distance throughout.

Up in the air, the crew of the P-8A Poseidon witnessed five ship-to-ship transfers, observed 59 vessels of interest and issued 19 deterrence messages.

Op Whio 4

The Seasprite helicopter embarked on HMNZS Aotearoa provides enhanced force projection and surveillance of suspicious vessels

Op Whio 1

Bridge watchkeepers aboard HMNZS Aotearoa keep a constant 24 hour watch during patrols

Op Whio 5

A Royal New Zealand Air Force Poseidon P8-A on patrol during Op Whio

Not operating alone in this area, HMNZS Aotearoa’s crew worked alongside Canada’s HMCS Max Bernays, France’s FS Prairial, and Japanese ships JS Maya and JS Hamana. They also carried out Replenishment at Sea for Australia’s HMAS Brisbane, and the United States Navy’s USS Shoup, USS Robert Smalls and USS Milius. 

“Once again, our people have demonstrated professionalism, endurance and commitment to upholding the international rules-based order,” said Commander Rob Welford, Commanding Officer of HMNZS Aotearoa.

“Through maritime patrol, airborne surveillance and international cooperation, we delivered tangible impact – from deterring illicit activity to supporting allied ships at sea. The professionalism of our own crews, and those of our partner nations, was evident throughout.” 

Air Component Commander Air Commodore Andy Scott said the P-8A Poseidon’s contribution to Op Whio was also vital.

“With its surveillance capabilities, the aircraft helps build the intelligence picture, informing the PSMX and enabling timely action.

“Our contribution to this deployment reinforces New Zealand’s strong and enduring commitment to UN sanctions enforcement and regional security.”

Op Whio 2

A Royal New Zealand Air Force Poseidon P8-A, works in partnership with HMNZS Aotearoa during Op Whio