 Tanks and infantry fighting vehicles were for frontline combat, and unarmored utility vehicles for transport behind the lines.In 1993, the military had to fight through Mogadishu in unarmored Humvees, leading to the development of up-armored models.Many generals doubted the benefits, but the Military Police Corps, tasked with patrolling the "safe" rear area behind the battle line insisted that the Army fund a slow but steady production of the bullet resistant M1114 Humvee.