NATO surveillance operators work on computers aboard an AWACS (Airborne Warning and Control System) NATO air surveillance aircraft during a flight over Polish airspace as part of the alliance's new Eastern Sentry mission on September 19, 2025. NATO said on September 19, 2025, it had scrambled aircraft to intercept Russian jets violating Estonian airspace, calling it proof of Moscow's "reckless" behaviour and the alliance's readiness to counter it. (Photo by JOHN THYS / AFP) (Photo by JOHN THYS/AFP via Getty Images)