Spanish Prime Minister Pedro Sánchez announced on September 14 that Spain will participate in a NATO operation on the eastern flank. The move is in response to tensions with Russia, with Sánchez stating that Putin will not intimidate Spain.

Germany has announced plans to strengthen its military presence on NATO's eastern border. This follows regional tensions. The move includes troop deployments and equipment upgrades.

NATO has initiated the 'Eastern Sentry' operation to enhance defenses in Eastern Europe after recent airspace violations. Multiple member states are contributing resources. The operation focuses on surveillance and rapid response.

Poland has deployed additional NATO forces along its eastern border following Russian drone violations. The move aims to bolster security and deter further aggressions. NATO allies have pledged support for the initiative.

Poland has invoked NATO Article 4 after Russian drones reportedly entered its airspace, prompting alliance consultations. This heightens tensions in Eastern Europe. The incident is part of ongoing security concerns involving Russia and NATO.

Poland has invoked NATO's Article 4 following incursions by Russian drones into its airspace. Consultations among allies are set to address the security concerns. The move underscores growing tensions in Eastern Europe.

Germany announced intentions to strengthen its military presence on NATO's eastern border. The decision is in response to regional security concerns.

Poland formally requested activation of NATO's Article 4 on September 10, 2025, following repeated Russian drone violations of its airspace. The request seeks consultations on territorial integrity and security threats.

Polish forces shot down multiple Russian drones violating its airspace on September 10, 2025. This marks the first instance of a NATO member destroying Russian military assets over its territory amid the Ukraine conflict. European leaders condemned the incursions.

The NATO Secretary-General visited Luxembourg amid ongoing discussions on European security. The visit was part of a weekly recap of events from September 1 to 5, 2025, focusing on international alliances.