Walter Model
From March 1942 until the evacuation of the western occupation zones in the autumn of 1944, Steinbrinck was also general plenipotentiary for the "Reichsvereinigung Kohle" for mining and coal economy in the Netherlands, Belgium and France, the so-called "Beko (Befehlskommando) West". In April 1945 – World War II had by now long ago been lost – Steinbrinck operated as a link between Ruhr industry and Army Group B under Generalfeldmarschall Walter Model.