U.S. Marine Corps aircraft arrive at Villamor Airbase in Manila, Philippines, to deliver humanitarian aid to victims of Typhoon Haiyan on Monday, November 11. Wong Maye-E/AP

The USS George Washington sails out of Hong Kong on Tuesday, November 12, to join the rescue and relief operations in the Philippines. Defense Secretary Chuck Hagel ordered the aircraft carrier and several other U.S. Navy ships to head to the area as soon as possible. RICHARD A. BROOKS/AFP/Getty Images

Typhoon survivors in Tacloban, Philippines, board a U.S. plane bound for the capital of Manila on November 11. TED ALJIBE/AFP/Getty Images

U.S. sailors of the USS Antietam stand on deck at Hong Kong's Victoria Harbor before sailing to the Philippines on November 12. Kin Cheung/AP

The USS Lassen, seen here in July, began heading to the region on November 11. Mass Communication Specialist 3rd Class Declan Barnes/US NAVY

U.S. Navy personnel hook up supplies to a MH-60S Seahawk helicopter in this file photo from September 2005. Seahawk helicopters, which were used to provide relief to Hurricane Katrina victims, will now be brought to the Philippines to help. avy Visual News Service, Mate 3rd Class Christian Knoel/AP

The USNS Charles Drew, a Navy supply ship, is among those heading to the Philippines. Mass Communication Specialist 3rd Class Paul Kelly/US NAVY

Also being sent to the typhoon-ravaged region is the USS Cowpens, a cruiser seen here in 2004. Junko Kimura/Getty Images

The USS Mustin is bound for the Philippines as well. Marine Corps Brig. Gen. Paul Kennedy said the amphibious ships are the "Swiss army knife of the U.S. military." Robert McRill/U.S. Navy via Getty Images