防ぼう楯じゅん

noun

gun shield; artillery shield

Military term for a protective shield mounted on a gun, especially artillery pieces, to protect the crew from small-arms fire and shell fragments.

• 砲ほう兵へいは防ぼう楯じゅんの陰かげに身みを隠かくした。

  The artillerymen took cover behind the gun shield.