armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"

applied scientist, engineer, technologist - a person who uses scientific knowledge to solve practical problems

sapper - a military engineer who does sapping (digging trenches or undermining fortifications)

sapper - a military engineer who lays or detects and disarms mines