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

Army issues manual for 'cyber electromagnetic activities'

It describes the concept of cyber electromagnetic activities as the overlap between electronic warfare – such as jamming – spectrum management and cyber operations. The term first appeared in official Army strategy documents in 2011, when it merited a mention in another Army  field manual  (.pdf) governing unified operations on land.

Wheeler outlines military spectrum challenges

As the military deals with the growing demand for spectrum, it's also challenged by the need to relocate to different frequency bands and coordinate with spectrum users in foreign countries, Air Force Maj. Gen. Robert Wheeler said.

White House announces new manufacturing innovation hubs

The Defense Department will lead the hubs, which will receive $140 million in federal funding and a similar financial commitment from businesses and universities, the White House  says. The Detroit-area institute will focus on lightweight and modern metals manufacturing, and the Chicago counterpart on digital manufacturing and design.

Hagel calls for increased Tricare copays and fewer subsidies for military families to cut costs in fiscal 2015 budget request

To reduce Defense Department costs for the fiscal 2015 budget, the agency will request increased healthcare copays, a 1 percent cap on raises and reduction to the subsidies military families get for housing and goods, Defense Secretary Chuck Hagel said in a Feb. 24 press briefing.

DoD isn't evaluating psychological programs based on science, Institute of Medicine says

The Defense Department can't properly evaluate which military psychological health programs are working because their program evaluations aren't based on scientific evidence, a Feb. 20 Institute of Medicine report says.

Air Force to launch 'neighborhood watch' space surveillance satellites

An Air Force general announced Feb. 21 the launch later this year of a previously classified satellite "neighborhood watch" constellation that will surveil space for covert satellites and debris.

Hagel to appoint official to oversee ethics in wake of cheating scandal

In the wake of recent military cheating scandal, Defense Secretary Chuck Hagel will appoint a senior officer to oversee ethical issues at the Defense Department.

DoD Enterprise Email gets nearly 10,000 new users

The Air Force headquarters has transitioned its unclassified email accounts to the Defense Department's cloud-based email system, DoD Enterprise Email.

DHS prepares for hypothetical immigration reform

Secretary Jeh Johnson said in a speech Feb. 7 that "when reform legislation is enacted, DHS must be prepared to implement reform. So to prepare for this potential outcome, I have already directed the deputy secretary of homeland security to coordinate the process, to ensure we are ready to implement the law." The speech, at the Wilson Center in Washington, D.C., was Johnson's first major policy address since his confirmation in December.

eBenefits PII glitch potentially affected about 1,300 says VA

A software defect that caused a joint Veterans Affairs and Defense Department self-service benefits portal to display personally identifiable information to other users accessing the system affected no more than 1,362 individuals, a VA officials told a House panel.