President Barack Obama will travel to Fort Meade, Maryland, to mark the 14th anniversary of the Sept. 11, 2001, terror attacks.
White House spokesman Eric Schultz says Obama will visit the Army installation on Friday.
Schultz says the president will talk with service members who work every day to keep the country safe.
Fort George G. Meade, a sprawling military installation between Washington and Baltimore, is home to the National Security Agency. About 11,000 military personnel and 29,000 civilian employees work on the property.
The trial of Army Private Chelsea Manning, who was convicted of espionage in the WikiLeaks cases, was conducted at Fort Meade in 2013.