Inside NATO's 'Sentry' missions and the urgent drive to ready for new threats

Inside NATO's 'Sentry' missions and the urgent drive to ready for new threats

NATO has rolled out new deterrence missions across Europe and the Arctic since early 2025. Business Insider visited all three.

A British Voyager tanker aircraft refuels fighter jets during a November 2025 mission in support of Eastern Sentry.Jake Epstein/Business Insider
  • NATO has rolled out three "Sentry" missions a… [+7573 chars]