The Department of Defense (DoD) is a department of the federal government and has three main components: The departments of the Army, Navy, and Air Force. The DoD is housed in the Pentagon building. The department's roles and limits are contained in Title 10 of the US Code. This section of the law has five components: Subtitle A refers to General Military Law, Subtitle B to the Army, Subtitle C to the Navy and the Marine Corps, Subtitle D to the Air Force and Subtitle E to Military Reserves. Important agencies within the DoD include the Defense Information Systems Agency (DISA), National Security Agency (NSA), the Missile Defense Agency, and the Defense Intelligence Agency (DIA). The DoD receives the largest portion of each year's federal discretionary spending budget. 

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Latest Headlines

Latest Headlines

How the Air Force's ECSS went wrong

An official review of what went wrong with the Air Force's canceled Expeditionary Combat Support System enterprise resourcing planning effort found problems including a failure of the Air Force to understand its own data, no clear picture on exactly how many legacy systems ECSS was meant to replace, and a confused governance structure.

DoD enacts rule on excluding contractors based on supply chain risk

The Defense Department may now officially exclude contractors or subcontractors from receiving information technology contracts based on the risk their supply chain poses to national security systems.

NDAA cloud interoperability language doesn't pertain to intelligence community, says White House

The White House says it interprets proposed legislative language regarding Defense Department supervision of cloud computing solutions for intelligence analysis as not "intending to supersede" an ongoing intelligence community unified cloud architecture effort.

DoD finalizes unclassified information protection rule for contractors

The rule is smaller in scope than the  proposed rule  the Defense Department put forth in June 2011; it proposed controls for any data tagged with a "for official use only" or similar marker. The final rule only pertains to "unclassified controlled technical information," which means technical data or computer software (as defined in the Defense Acquisition Regulation Supplement, section  252.227-7013).

Johnson: Top priority at DHS is leadership vacancies

The nominee to fill the vacancy atop the Homeland Security Department said his immediate priority as secretary would be to help fill other key positions throughout the department.

Head of DoD EHR procurement: 'I'm an acquisition guy, not a doctor'

The first draft of a request for proposals for the modernized Defense Department electronic health record is set for release in January, the newly-installed head of the DoD Healthcare Management System Modernization Program told an industry audience Nov. 13.

DoD app store, MDM running by year end

The Defense Department will begin using its mobile device management system and mobile application store by the end of the year, said DoD Public Affairs Officer Lt Col Damien Pickart. Digital Management, Inc., the Bethesda, Md.-based contractor that won the contract June 27, will provide the department with initial operating capability no later than  Dec. 31.

Impacts of sequestration not easily traced

It can be difficult to connect sequestration to specific impacts at the Defense Department with so many other variables at play, the Government Accountability Office says. For the first half of fiscal 2013, before sequestration went into effect, DoD was operating under a continuing resolution, which already affected its budget authority and flexibility, the GAO notes in a Nov. 7 report.

Fate of remaining Air Force C-27Js still unknown

The fate of the fourteen C-27J aircraft the Coast Guard hopes to inherit from the Air Force remains undecided, a Pentagon spokesman said.

Sequestration will cause higher casualties, reduced manpower, military officers warn Senate panel

Top military officers warned that sequestration would reduce manpower and cause higher U.S. casualty rates in a Nov. 7 Senate Armed Services Committee hearing. Through 2021, Defense Department sequestration cuts will total of $480 billion.