Successor to the Strategic Defense Initiative (SDI) AKA "Star Wars" program, BMDO develops and deploys theater missile defenses (TMD), develops options for deployment of national missile defenses (NMD), and continues to support research for advanced BMD technologies. History, photos, fact sheets, tech transfer, small businesses.

Commissions advanced research for DoD. It was founded in response to the surprise Sputnik launch in 1958 and fathered the Internet somewhere along the way. Site explains what they're looking for (Solicitations), how to do business with them, news releases on the latest gee-whiz technology, budget info.

Headquarters at Fort Lee, Virginia, DeCA operates a worldwide chain of 284 commissaries to provide groceries to military personnel, retirees and their families.

Responsible for performing all contract audits for the Department of Defense, and providing accounting and financial advisory services regarding contracts and subcontracts to all DoD Components responsible for procurement and contract administration.

Responsible for ensuring Federal acquisition programs, supplies, and services are delivered on time, within cost, and meet performance requirements.

Manager of the Global Information Grid (GIG), DISA is integrating hardware and software and constructing a common operating environment to sustain warfighters need for information anytime, anywhere.

Office of General Counsel (GC, DoD), Oversees, as appropriate, legal services delivered by the military and civilian attorneys in all DoD components. In addition, the GC, DoD provides legal advice to the Secretary of Defense, the Deputy Secretary of Defense and other Senior DoD officials.

Provides timely and effective direction, supervision, and oversight of security cooperation programs in support of U.S. national security and foreign policy objectives; and promotes stable security relationships with friends and allies through Military Assistance.

Provides security services to the Department of Defense and defense contractors. Mostly counter-espionage and physical security tasks. Formerly known as the Defense Investigative Service (DIS).

The accounting firm of the Department of Defense (DoD). DFAS is responsible for identifying and implementing finance and accounting requirements, systems and functions for appropriated and non-appropriated funds, as well as working capital, revolving funds and trust fund activities.

Consolidates a variety of disparate, yet related, Defense Department functions to deal more effectively with the threats posed by nuclear, chemical, or biological weapons.