The UK and France are sharpening their military readiness through exercises designed to test how NATO forces could respond to a simulated enemy threat. The drills come amid heightened tensions between the alliance and Russia, with Moscow’s heavily militarised Kaliningrad exclave remaining a key strategic concern in Europe’s security calculations. British and French forces are rehearsing battlefield coordination, rapid deployment and defensive operations as NATO members reassess their preparedness for a potential confrontation. The exercises do not necessarily indicate that a conflict is imminent, but they highlight the alliance’s focus on deterrence and collective defence. What message could these military rehearsals send to Moscow?