A 2011 declassified CIA volume titled "Air Operations, March 1960–April 1961" from the comprehensive "Official History of the Bay of Pigs Operation," made the indication that "it was clear from the outset that air operations would play a key role in the CIA program to oust the Cuban leader." By the summer of 1960, the JMATE, a unit under the direct command of Richard M. Bissell and the DPD, strove to acquire "aircraft for infiltration, propaganda, and supply drops to dissent groups within Cuba." By July 1960, it became clear that "tactical air operations with combat aircraft would play a major role in JMATE plans.".[49]