L-3 MPRI, now known as Engility Corporation, was incorporated in 1987 by eight former senior military leaders, including Carl E. Vuono, a former Army Chief of Staff, who joined the company in 1993.
It used retired military personnel and current U.S. National Guard or reservists to run Reserve Officer Training Corps programs at more than 200 universities.
MPRI offered a range of services to its clients, drawing on expertise from various fields such as the military, law enforcement, analysis, disaster management, diplomacy, and the private sector.
In 1995, before Operation Storm, according to some sources, MPRI provided training and preparation to the Croatian Army prior to its offensive to retake the Krajina region.
[7] On the back of its success in Croatia, MPRI won the approximately $50 million ‘Train and Equip’ contract for the Bosnian Federation army, which ran from July 1996.
The contract began with restructuring the Ministry of Defense and claimed to create a combined logistics system between the initial separate Muslim and Croat armies.
[9] MPRI-trained security forces were used to defeat an attack on the presidential palace of Equatorial Guinea's long-serving dictator Teodoro Obiang Nguema.
In 1998, the government of Equatorial Guinea asked MPRI to evaluate its defense systems, particularly its need for a coast guard to protect its oil reserves.
The contract expired in March 2001 and was not renewed, allegedly because the Colombian Defense Ministry and its officers were upset by recommendations such as "Hit the enemy with a closed fist; do not poke at him with the fingers of an open hand."