In 1937 General Bineau, who had taught him at St Cyr, wrote on his report on his lectureship at CHEM that he was highly able and suitable for high command in the future, but that he hid his attributes under "a cold and lofty attitude". He was put in command of the 507th Tank Regiment (consisting of a battalion of medium Char D2s and a battalion of R35 light tanks) at Metz on 13 July 1937, and his promotion to full colonel took effect on 24 December that year. De Gaulle attracted public attention by leading a parade of 80 tanks into the Place d'Armes at Metz, in his command tank "Austerlitz".