3rd panzer division was also supported by "panzerlehrabteilung", a detachment that consisted of panzer iii and panzer iv, which were at that point rarer in german tank divisions than their lighter panzer i and panzer ii counterparts. both the 2nd and the 20th divisions were motorized, which was not at all standard amongst german infantry divisions. 3rd panzer division was the strongest of all german panzer divisions in the invasion, numbering 391 tanks out of the german overall of 3195.