主题：【文摘】《公民士兵》节译1-美军Hacker神枪手 -- Ambrossi

http://www.normandiememoire.com/原文：

Originally placed in open concrete pits, the guns proved vulnerable to Allied aerial bombardments, which had considerably increased in frequency since 1943. In order to protect them, Rommel ordered them to be placed in thick concrete casemates....On D-Day, the German coastal batteries offered only feeble resistance to the Allied ships, which overcame them without too much difficulty.

如果可信的话，说明两件事，第一这样的工事对付P57的500磅炸弹是有效的。第二这样的工事对付大口径舰炮还是有困难，Ambrose文中提到的应该只是特例。