Russian military aircraft and drones have sharply increased provocations along NATO’s eastern borders, repeatedly testing the alliance’s air defense systems.

In recent months, Russian drones reportedly flew deep into Polish airspace, fighter jets violated Estonia’s airspace for 12 minutes, and unidentified drones were detected over Denmark’s main air force base.

The incidents mark a steady escalation in Moscow’s efforts to probe NATO defenses amid ongoing global tensions.

President Donald Trump has called on European NATO members to “respond with force” if such intrusions continue, emphasizing stronger deterrence and shared defense responsibilities.

According to The Wall Street Journal, analysts say the pattern reflects Russia’s intent to test NATO’s readiness and unity while gauging the alliance’s response thresholds.