PORTLAND PORT, England –
Exercise Sea Breeze 25-2 officially concluded following two weeks of multinational mine countermeasure operations in the waters off the United Kingdom’s southern coast July 11, 2025. Naval forces from 14 nations, including NATO allies and partners, demonstrated coordination and enhanced interoperability in a dynamic maritime environment.
From June 30 to July 11, participating forces from Bulgaria, Denmark, Estonia, France, Georgia, Greece, Latvia, Poland, Spain, Sweden, Türkiye, the United Kingdom, and the United States conducted joint mine hunting operations, dive and salvage missions, explosive ordnance disposal, and the deployment of cutting-edge robotic and autonomous systems (RAS).
The culminating demonstration showcased a unified application of these capabilities, reinforcing the collective strength and cohesion of participating nations in high-intensity, multi-domain scenarios.
“The U.S. Navy’s mission is to keep the seas open. Mines restrict that. Our MCM force is small, so we rely heavily on partners and allies. These exercises ensure we can interoperate and conduct mine countermeasure operations together,” said Capt. William Williams, the commodore of Mine Countermeasures Group 6.
At the center of the exercise was a fully integrated, combined headquarters that executed advanced staff planning, targeting operations, and command-and-control across a coalition force. The inclusion of RAS, electronic warfare integration, and real-time situational awareness significantly expanded the participating nations' capacity to operate across domains.
This year, Exercise Sea Breeze 2025 occurred in two iterations, Sea Breeze 25-1 and 25-2. The first iteration, Sea Breeze 25-1, was hosted by the Romanian Armed Forces at Smardan Range, Romania, June 1-20, 2025.
Since 1997, Exercise Sea Breeze has brought together Black Sea nations, NATO Allies and partners together to train and operate with NATO members in the pursuit of building increased capabilities. Exercise Sea Breeze 2025 is an annual multinational maritime exercise, involving sea, land, and air components co-hosted by the United States and Ukraine to enhance interoperability and capability among participating forces.
Commander, U.S. 6th Fleet, headquartered in Naples, Italy, conducts the full spectrum of joint and naval operations, often in concert with allies, international partners, and other U.S. government departments and agencies to advance U.S. national interests, security, and stability in Europe and Africa.