reduce obstacles

eliminate / flatter / reduce a bulge

reduce

reduce to the ranks

suppress, obscure, secure, reduce, and assault (SOSRA)

reduce reaction time

reduce heat load on the weapon

reduce emission

reduce hazard

reduce noise

reduce a pocket

reduce defenses

reduce a salient

reduce an obstacle

reduce to shambles

reduce from rank

reduce in rank

breaching of obstacles

negotiation of obstacles

timber obstacles

artificial beach obstacles

artificial underwater and beach obstacles

Modified Combined Obstacles Overlay (MCOO)

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

staggered obstacles

flanking obstacles

zone of obstacles

installation of obstacles

granite post obstacles

maintain obstacles

obstacles in depth

passage of obstacles