坦克长“利齿”在诺曼底登陆战役的初始阶段，盟军经过顽强作战，突破了希特勒经营多年的“大西洋铁壁”，但在德军的顽强抵抗和复杂的地形面前，进展缓慢。在美军的突破地段，有大片的泛区和很高的灌木丛。这些灌木丛是诺曼底农民几个世纪以来用以分割农田的树篱,树篱一半长在 In the initial stage of the Battle of Normandy, the Allied forces broke through the “Atlantic Iron Wall” Hitler had been operating for many years. However, the Allied forces made slow progress in the face of the tenacious resistance and complex terrain of the German Army. In the breakthrough areas of the U.S. military, there are large pan-European areas and high shrubs. These shrubs are hedges used by Norman farmers to divide farmland for centuries, with half the hedges