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

Sorry VistA, DoD's health record won't be open source

The Defense Department's next electronic health record will not be based on the open source architecture that supports the Veterans Affairs Department's EHR.

GAO: DoD isn't using a comprehensive method to measure improper healthcare payments

The Defense Department uses a method for measuring improper healthcare payments to military members that is less comprehensive than the method used by the rest of the government for other healthcare programs, says a Feb. 18 Government Accountability Office report.

DoD doesn't know if it can sustain contracting database, says GAO

The Defense Department doesn't know what resources it needs to sustain it's contracting database, says a Feb. 18 Government Accountability Office report.

GAO: Army, Navy Dept. fail to track service separation due to non-disability mental conditions

The Army, Navy and Marines don't know how many military members have been separated from service due to mental illness that aren't considered service-related, says a Feb. 13 Government Accountability Office report.

Janus DoD/VA health record viewer to be shared with third-party medical providers

A graphical interface that allows electronic health records from the Defense and Veterans Affairs departments to be viewed side-by-side will be pushed outside of the government's healthcare networks, according to a VA official.

DoD not living up to promise of expansion of MODA program, says GAO

The Defense Department's rollout of a program that matches civilian DoD experts with foreign governments isn't progressing quickly enough, says a Feb. 11 Government Accountability Office report.

GAO: DoD continues to confront decades-old management problems

While the Defense Department maintains military forces with "unparalleled capabilities," it continues to confront decades-old business management problems, says a Feb. 11 Government Accountability Office report.

Agencies need to strengthen protections of military technology

The agencies responsible for protecting military technology have taken steps to strengthen oversight, but there are weaknesses that still need to be addressed, says a Feb. 10 Government Accountability Office report.

The president's 2016 budget request: Veterans Affairs Department

VA's Office of Information and Technology, or OI&T, requests a total budget authority of $4.13 billion in fiscal 2016 – $231 million more than the fiscal 2015 enacted level and $430 million more than the fiscal 2014 budget.

The president's 2016 budget request: Defense Department

The Defense Department requests $5.5 billion for "cyber capabilities enhancements" in fiscal 2016, according to a 29-page budget brief outlining the DoD's budget proposal. That's more than one-third of the $14 billion for cybersecurity governmentwide in the president's fiscal 2016 budget request.