obstacle clearance surface

naval surface forces, surface fleet, surface forces

obstacle clearance altitude (OCL)

obstacle clearance height

obstacle clearance limit (OCL)

obstacle clearance panel

obstacle clearance takeoff

surface-to-surface artillery

surface-to-surface missile (SSM)

ballistic surface-to-surface missile

control surface / control-surface

guided surface-to-surface missile

surface-to-surface

surface-to-surface delivery system

surface-to-surface missile (rocket)

antiboat obstacle

antipersonnel obstacle

antipersonnel obstacle breaching system (APOBS)

antitank obstacle

antivehicular obstacle

artificial obstacle

barbed wire obstacle

beach obstacle

composite obstacle

concrete obstacle

demolish an obstacle

incendiary obstacle

log obstacle

man-made obstacle

mine obstacle

natural obstacle

obstacle belt/ course

obstacle development