дерев’яні загородження
lumber / timber car
timber
breaching of obstacles
negotiation of 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
reduce obstacles
obstacles in depth
passage of obstacles