The M113 will now be replaced by the Armored Multi-Purpose Vehicle (AMPV) program. Some 2,897 vehicles in five mission roles are set to take its place at the brigade level and below within armored brigades. However, the AMPV program is not developing a vehicle to replace the M113 in supporting echelons above brigade level, which will have different requirements. BAE Systems submitted a version of the Bradley fighting vehicle for the AMPV, while General Dynamics has offered the Stryker for filling the M113's roles in rear-echelon units outside of armored brigades removed from frontline fighting, and Navistar Defense has offered an upgraded version of the Maxxpro MRAP for units above brigade level as well.