The US and NATO allies will conduct their annual BALTOPS naval exercise in the Baltic Sea from June 4 to June 20, 2026 [1, 2]. The drills will involve approximately 20 vessels from 15 nations and around 6,000 personnel, roughly half the size of last year’s exercise [1, 2]. The reduction reflects operational commitments elsewhere, including deployments in the Middle East and Arctic regions [1, 2].
The United States will provide the flagship Mount Whitney vessel to lead the exercise [1]. Operations will begin in the western Baltic Sea before shifting eastward near the Swedish island of Gotland. The drills will focus on rehearsing resupply and protection of sea routes in this area [1, 2].
Free sea lines of communication around Gotland are considered vital for supplying the Baltic states, which depend on narrow land corridors to NATO mainland [1, 2]. German Rear Admiral Stephan Haisch, commander of Task Force Baltic and head of the multinational Baltic Sea naval headquarters based in Rostock since 2024, said, "In this period, it is a sign of the alliance's strength, that a major exercise is being conducted, under US leadership, with broad NATO participation" [1, 2].
Germany established the multinational Baltic Sea naval headquarters in Rostock in 2024 with a focus on operations versus Russia [1]. The 2026 BALTOPS exercise aims to enhance Baltic maritime security despite the smaller scale due to competing global commitments [1, 2].
The drills will run through June 20, with participating forces conducting coordinated maritime operations across the key sea routes in the Baltic region [1, 2].
