The United States has sent two US Marine Corps CH-53E Super Stallion helicopters and a US Navy MH-53E Sea Dragon helicopter to Pakistan as part of the continued humanitarian assistance to the flood-stricken country.

President Barack Obama on Saturday promised Gulf Coast residents that the federal government won't abandon them once efforts to stop the oil spill are finished.

Two warships have arrived back in UK waters following a four-month deployment in the western Atlantic.

A Navy Boeing P-8A Poseidon test aircraft turns toward home at Naval Air Station Patuxent River, Md., during a test flight.

Underwater is usually a quiet place, but when the U.S. Navy is doing submarine security exercises, the calm can be shattered by blasts of high-intensity sonar .