A NATO-led training exercise focused on anti-submarine warfare (ASW) just kicked off in the north Atlantic.

Naval forces from more than 10 nations, including the US, UK, France, Germany, Canada, Norway, and Iceland, will be out in force off the coast of Iceland to hone their skills in hunting down and destroying enemy submarines as part of Exercise Dynamic Mongoose.

Running from June 27 to July 6, the training will feature warships, submarines, and maritime patrol aircraft.

“The presence of NATO in the waters south of Iceland is a a sign of an increased focus on the North Atlantic and will strengthen the Alliance’s knowledge and experience of the area,” Arnor Sigurjonsson Director, Department of Security and Defence, Iceland’s Ministry for Foreign Affairs, told Naval Today.

The US Navy is bringing in a Los Angeles-class fast attack sub, an Arleigh Burke-guided missile destroyer, one P-8A Poseidon aircraft, and two P-3C Orion aircraft, both of which are designed to hunt down subs and surface vessels from the air.

"We look forward to this training opportunity with our NATO allies and partners," Capt. Roger Meyer, commander, Task Force 69, said in a statement. "While promoting international security and stability, Dynamic Mongoose will serve to fortify theater ASW capabilities, enhance interoperability and strengthen alliances within the European theater."

The exercise comes amid increasing tensions with Moscow, which has complained about NATO's acceptance of Montenegro into the alliance and Norway's recent decision to host more than 300 US Marines in its country for at least another year.