Military helicopters are a key part of emergency response. Here are some of the more interesting helicopters used by the military for lifesaving missions.

The contract tasks Sikorsky, a Lockheed Martin company, to build up to 99 CH-53K King Stallion helicopters over five years for the U.S. Marine Corps and international military customers to use.

Military helicopters will fly over Boston as part of the U.S. Marine Corps' 250th birthday celebration, happening Wednesday through Sunday. Residents of East Boston, Charlestown, Winthrop and Chelsea ...

ABC News is reporting that a military helicopter crashed about 9 p.m. Sept. 17 near Joint Base Lewis–McChord outside Olympia, the capital of Washington state. The Thurston County Sheriff's Office said ...