in the night from may 10 to may 11, panzer group kleist's command warned of a possible french cavalry counter-attack and asked for 10th panzer division to be partially pulled back and turned towards longwy to cover the panzer group's left. guderian asked for the order to be rescinded, fearing a temporary loss of a third of his strength, and von kleist eventually relented. the cavalry attack did not occur. throughout the campaign towards the meuse, xix army corps was heavily supported by the german third air fleet, which struck at french troop movements, infrastructure, railroad and rear guard communications at an exceptional operational depth of on average 76 kilometers per sortie.