Kenneth E. Hunter, The war against Germany: Europe and adjacent areas (1988)
“ The terrain through which the Allied troops fought was favorable to the defense. In the close bocage countryside, dotted with woods and orchards and with fields divided by tree-topped embankments where armor could not well be employed, the infantry had to wage a grim struggle from hedgerow to hedgerow and from bank to bank, harassed by snipers and machine gun posts. On 24 July the troops of the U. S. First Army were waiting for the weather to clear sufficiently for an air attack before they attempted to break out of Normandy in the area of the Périers-Lessay-Saint-Lô road. ”
