Estonia is significantly altering its defense posture, moving away from a passive defense strategy to one that includes preemptive strikes against Russia. This shift is driven by increasing Russian belligerence towards NATO and a historical vulnerability that has been highlighted in military wargaming exercises.
General Vahur Karus stated that Estonia would strike first if signs of an imminent Russian attack were detected, emphasizing the crucial capability to neutralize the enemy on its own territory. This aligns with the country's recently issued defense strategy, which aims to counter threats before they materialize on Estonian soil. Previously, the doctrine focused on delaying an invasion for approximately 10 days to allow NATO reinforcements to arrive.
The strategic importance of Estonia to NATO's credibility is paramount. The alliance's Article 5, concerning collective defense, would be severely tested if Estonia were overrun quickly. The recent additions of Finland and Sweden to NATO are seen as bolstering Baltic deterrence, addressing challenges related to potential overland or sea-based reinforcement routes that were previously complicated by factors like the Kaliningrad bastion and the Suwalki Gap.