Italian warships had a general reputation as well-designed and good-looking. But some Italian cruiser classes were rather deficient in armour. All Italian warships lacked radar for most of the war, although this was partly offset by their good "rangefinder" and "fire-control" systems. In addition, whereas Allied commanders at sea had discretion on how to act, Italian commanders were closely and precisely governed by Italian Naval Headquarters ("Supermarina"). This could lead to action being avoided when the Italians had a clear advantage (e.g., During "Operation Hats"). Italian Naval Headquarters was conscious that the British could replace ships lost in the Mediterranean, whereas Italian Navy resources were limited and there was a terrible lack of fuel.