A Navy Landing Signal Enlisted signals a U.S. Marine Corps CH-53 Super Stallion helicopter to lift off from the amphibious assault ship USS Wasp (LHD 1) on Jan. 17, 1998, during Joint Task Force Exercise 98-1. More than 30,000 U.S. military personnel are participating in the exercise which is testing joint forces on their ability to deploy rapidly and conduct joint operations during a crisis. All branches of the armed forces are training side-by-side using the latest advances in technology in a simulated high-threat environment that involves air, naval and ground operations.