for the 1940 campaign against france and the low countries, the armored forces of the wehrmacht had been reorganized. the four 'light divisions' that had operated during the polish campaign had proven themselves too weak and were converted into full-strength panzer divisions. xix army corps now contained three panzer divisions, 1st panzer division under friedrich kirchner, 2nd panzer division under rudolf veiel, and 10th panzer division under ferdinand schaal. these units were joined by infantry regiment großdeutschland to complete xix army corps. none of the units that had been part of the corps during the invasion of poland - 3rd panzer as well as 2nd and 20th infantry - were still part of the army corps.