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

DoD hasn't implemented plan to properly monitor weapons acquisition, GAO says

The Defense Department isn't properly monitoring its weapons acquisitions for affordability, despite the Government Accountability Office laying out a plan for the DoD to do so eight years ago, according to an Aug. 27 GAO report.

New manufacturing alliance helping DoD turn 'science fiction' hybrid electronics into reality

Defense Secretary Ash Carter said that flexible hybrid electronics will have great potential for the military and commercial sector, namely shaping "electronics to things" rather than the other way around.

Upcoming study outlines broad strategy for securing future DoD computer networks

As the Defense Department contends with greater and more sophisticated cyber attacks, it needs to enhance security from "chip to the cloud" and boost the speed and performance of system defenses, while remaining cost-effective, according to a recent Lexington Institute blog post.  

DoD implements stricter cyber incident oversights, cloud computing guidelines

The Defense Department Wednesday initiated two sets of policies to enforce stricter guidelines when dealing with the 10,000 contractors the department trusts with offsite cyber information.

Contributions, reporting 'sporadic' in first year of broad coalition effort to fight the Islamic State

Almost one year ago, President Obama announced some 60 nations and partner organizations formed a coalition to "degrade and ultimately defeat" the Islamic State. But the Congressional Research Service pointed out in a new report that members' contributions have varied widely and fewer than half are active in the military effort against the terrorist group.

Navy will use solar energy for 14 Navy and Marine installations

The Navy has signed on to have a 210 megawatt solar facility built at its Naval Air Station North Island, California, making it the biggest purchase of renewable energy by federal entity, according to an Aug. 20 Navy statement.

Federal workers who used Ashley Madison facing possible punishment

After a hacking group made 36 million email records from infidelity matchmaking website Ashley Madison public, some federal agencies are investigating whether employees breached policy in using the service.

Sequestration has had a 'noticable' effect on US economy, says Bernanke

Sequestration at the Defense Department hasn't only hurt agencies, it's also been a detriment to the American economy, Former Federal Reserve Chair Ben Bernanke said at an Aug. 18 Brookings Institution event.

DoD establishes new guidelines, oversight for its cyber workforce

The Defense Department issued a directive last week that creates a council to handle oversight for new guidelines that will standardize and unify its cyber workforce and policies.

Spotlight: No protest on DHMSM contract award

The department said the deadline for protest has passed and given there were no protests filed by the losing bidders, the contract will proceed as planned.