sentences:  Brigadier General Jose M. Portela, the youngest C-141 Starlifter aircraft commander and captain was the only reservist ever to serve as director of mobility forces for Bosnia, served as commander of the Puerto Rico Air National Guard from January 11, 2005 to November 2006.The tactical aviation element of PRANG operates as the 156th Airlift Wing, 198th Airlift Squadron, flying C-130E aircraft.They operate out of Muñiz Air National Guard Base, located within the grounds of Luis Muñoz Marín International Airport.