Luck's account of threatening a Luftwaffe officer is plausible given that "88mm anti-aircraft crews did not expect to become embroiled in fighting as per III Flak Korps policy, and their direct involvement occasionally took some persuasion." Napier also asserts that the timeline of Luck's stated confrontation with the Luftwaffe battery commander, just after 09:00 hours, correlates with the losses the 2nd Fife and Forfar Yeomanry at 09:30 hours since a "88mm flak battery would only need about 15 minutes to relocate a short distance". Napier further writes that the fact that two Tiger tanks were destroyed by German friendly fire "suggests the actions of an inexperienced Luftwaffe crew" unable to identify retreating German tanks. According to Napier the 75mm Pak 40 anti-tank guns were incapable of the clean armour penetrations found on the Tigers at that range and the only other alternative unit that could have engaged the British tanks was Becker's 4th Battery located in Le Mensnil Frementel. Napier notes "if this company did not move before 0930 hours, it would have been cut off when the leading tanks of the 29th brigade crossed the railway" and reasoned "since the battery "Was able to relocate successfully to just south of Four where it was in action for the rest of the day and so must have moved well before 0930 hours." Napier stated that an officer of the 2nd Fife and Forfar wrote in his memoirs "of his surprise at seeing a German officer in dress uniform surveying the battlefield from Cagny". Napier concluded that Luck "correctly attributed credit where it was due and his only sin is the assumption of a mantle previously worn by Rommel who stopped the British tank attack at Arras in 1940 by ordering the 88mm flak guns to engage the ground targets of the British tank forces." Luck spent the rest of the day using the resources he had to check the gaps in the line. In the afternoon, the first elements of the 1st SS Division Leibstandarte SS Adolf Hitler had moved up in support and the situation was somewhat stabilized. The following day, Luck's Kampfgruppe, supported by the armour of 1st SS, held the British in check, and launched counterattacks on the British flanks. The British attack ended on 20 July. In the evening, the 12th SS Panzer Division Hitlerjugend relieved Luck's men. For his service during Operation Goodwood, Luck was