CACI International has been awarded a position on a $975m contract to support Counter Narcotics and Global Threats (CN>) operations by the US Central Command (CENTCOM).
Under the seven-year contract, the company will also provide support for the US Department of Defense (DoD) Air Combat Command, and other geographic combatant command forces.
CACI will provide logistics and operations support for CENTCOM and its military and civilian partner agencies to disrupt illegal terrorist and narcotics activities.
CACI US Operations chief operating officer and president John Mengucci said: "With this contract, CACI will continue to deliver the functional expertise, experienced personnel, and cutting-edge methodologies the counter-narcotics mission requires.
"CACI has an outstanding track record of performance supporting DoD and other partners in this mission."
In a separate development, CACI will continue to provide development, engineering, and protection services (DEPS) for the US Army's Intelligence and Information Warfare Directorate (I2WD), under a multi-year task order.
The task order was awarded under the Rapid Response-Third Generation contract vehicle.
CACI will provide software and hardware engineering support to help I2WD secure air and ground platforms against cyber attacks, as well as assist in developing countermeasures.
I2WD is the US Army's centre for research and development of advanced cyber operations, electronic warfare, intelligence technologies and analysis, radar, exploitation and dissemination capabilities.