Exercise Trident Juncture 18 is the NATO Response Force 19 certification exercise for HQ JFC Naples and its designated component commands. During the largest NATO live exercise since 2002, over 40,000 troops will deploy to central and northern Norway in October 2018 and test the rapid deployment of the Very High Readiness Joint Task Force and follow-on forces. The span of command ranges across land, air, and sea domains throughout northern Europe and will include an opportunity for the Alliance to operate in parallel alongside partner nations Finland and Sweden. The United States Marine Corps will make up the largest U.S. service element, along with key assets from the U.S. Army, U.S. Air Force, and U.S. Navy.