Insufficient training of vehicle crews and their poor morale during the last stage of the war were the biggest problems for "Jagdtiger" crewmen under Carius's command. At the Ruhr Pocket, two "Jagdtiger" commanders failed to attack an American armored column about away in broad daylight for fear of attracting an Allied air attack, even though the "Jagdtigers" were well-camouflaged. Both vehicles broke down while hurriedly withdrawing through fear of the supposed air attack that did not materialize and one was then subsequently destroyed by its crew. To prevent such a disaster, at Siegen, Carius himself dug in his command vehicle on high ground. An approaching American armored column avoided his prepared ambush because nearby German civilians warned them of it. Later, one of his vehicles fell into a bomb crater at night and was disabled while another was lost to a "Panzerfaust" attack by friendly "Volkssturm" militia troops who never saw a "Jagdtiger" before and possibly misidentified it as an Allied armored vehicle.