What is ‘Arctic Sentry’ and will it deter Russia and China?

Nato considers joint operation and intelligence sharing in Arctic region, in face of Trump’s threats to seize Greenland for ‘protection’

Photo composite illustration of a soldier in winter gear patrolling an Arctic landscape
The question remains whether a Nato mission could feasibly protect the mineral-rich Arctic
(Image credit: Illustration by Stephen Kelly / Getty Images)

Nato is mulling a joint operation to defend the Arctic from future Russian and Chinese aggression – and to neutralise US ambition.

Britain, Germany and France have discussed a possible “Arctic Sentry” mission, echoing two similar Nato initiatives launched last year: Baltic Sentry (in response to underseas cable sabotage) and Eastern Sentry (following Russian drone incursions). This would be in addition to Denmark’s “Operation Arctic Endurance” in Nuuk where Britain, Canada and 10 other European nations have already sent a handful of troops to join that reconnaissance force in the Greenland capital.

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Harriet Marsden is a senior staff writer and podcast panellist for The Week, covering world news and writing the weekly Global Digest newsletter. Before joining the site in 2023, she was a freelance journalist for seven years, working for The Guardian, The Times and The Independent among others, and regularly appearing on radio shows. In 2021, she was awarded the “journalist-at-large” fellowship by the Local Trust charity, and spent a year travelling independently to some of England’s most deprived areas to write about community activism. She has a master’s in international journalism from City University, and has also worked in Bolivia, Colombia and Spain.