Navy Petty Officer 1st Class Angus J. MacDonald, son of Susan T. and Finley F. MacDonald of Colebrook, N.H., is participating in Summer Pulse 04, the Navy’s first exercise of its new operational construct, the Fleet Response Plan.

Seven carrier strike groups are deployed in five theaters with other U.S., allied and coalition military forces demonstrating the ability to provide credible combat power across the globe.

During the three-month exercise, the Kitty Hawk, Enterprise, John F. Kennedy, George Washington, John C. Stennis, Harry S. Truman and Ronald Reagan will demonstrate the swift presence the U.S. can bring to a fight, and highlight the essential flexibility to adapt to a changing security environment. Nearly 40,000 sailors are participating.

MacDonald is one of more than 200 crew members assigned to the ship homeported in Norfolk, Va. MacDonald is a 1992 graduate of Colebrook Academy and joined the Navy in August 1992.

USS Klakring fulfills a protection of shipping mission as anti-submarine warfare combatants for amphibious expeditionary forces, under way replenishment groups and merchant convoys.

Marine Corps Pfc. Joshua C. Heath, a 2002 graduate of Fryeburg Academy, Fryeburg, and more than 2,200 Marines and sailors assigned to the 24th Marine Expeditionary Unit recently deployed to Iraq.

The unit will stop at March Air Reserve Base in southern California for specilaized training in patrolling, operating vehicle checkpoints and responding to threats.

Heath’s unit is an expeditionary intervention force with the ability to rapidly organize for combat operations in virtually any environment.