Defense Advanced Research Projects AgencyTagged Content List

DARPA History

History of DARPA and its accomplishments

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The Advanced Research Projects Agency (ARPA) gained a “D” when it was renamed the Defense Advanced Research Projects Agency (DARPA) in 1972. The Agency’s name briefly reverted to ARPA in 1993, only to have the “D” restored in 1996.
With a desire by national leadership to re-emphasize the Agency’s focus on defense matters over commercial ones, ARPA regains its D for Defense to again become DARPA.
ARPA research played a central role in launching the “Information Revolution,” including developing or furthering much of the conceptual basis for ARPANET, a pioneering network for sharing digital resources among geographically separated computers. Its initial demonstration in 1969 led to the Internet, whose world-changing consequences unfold on a daily basis today. A seminal step in this sequence took place in 1968 when ARPA contracted BBN Technologies to build the first routers, which one year later enabled ARPANET to become operational.
In 1978, DARPA integrated a number of technologies—including lasers, electro-optical sensors, microelectronics, data processors, and radars—important for precision guided munitions (PGMs) under its Assault Breaker program. Over a four-year period, Assault Breaker laid the technological foundation for several smart-weapon systems that were ultimately fielded with high success. Among these systems are the Joint Surveillance Target Attack Radar System (JSTARS), which integrated PGMs with advanced intelligence, surveillance, and reconnaissance (ISR) systems developed with DARPA support; the Global Hawk unmanned aerial vehicles; a U.S. Air Force air-to-ground missile with terminally guided submunitions; the long-range, quick-response, surface-to-surface Army Tactical Missile System (ATMS), which featured all-weather, day/night capability effective against mobile and other targets; and the Brilliant Anti-armor Tank (BAT) submunition, which used acoustic sensors on its wings to detect and target tanks.
In an in-air demonstration in 2007, DARPA teamed up with NASA to show that high-performance aircraft can easily perform automated refueling from conventional tankers. The 2007 demonstration was not entirely automated, however: a pilot was on board to set conditions and monitor safety during autonomous refueling operations.