Assault pioneer
An assault pioneer is an infantryman who is responsible for: The construction of tools for infantry soldiers to cross natural and man-made obstacles as well as breaching of enemy fortifications Supervising the construction of field defensive works such as bunkers, support weapon firing positions, etc. The use of demolitions, land mines and booby traps, as well as their clearance Performing of all other normal infantry duties as the situation requires Assault pioneers are lineal descendants of pioneers who have formed an essential part of armies since at least the time of the Roman legions.