During the Invasion of Poland, Corps Wodrig oversaw the 1st and 12th Infantry Divisions, as well as the 1st Cavalry Brigade. Corps Wodrig was stationed in southern East Prussia as part of 3rd Army, commanded by Georg von Küchler. The 3rd Army was in turn under the supervision of Army Group North, commanded by Fedor von Bock. In the opening days of the invasion, Corps Wodrig struck straight south into the units of the Polish Modlin Army in the Mława area. The resulting Battle of Mława ended in German victory. Corps Wodrig advanced further towards Warsaw, assisting the German pincer movement against the German capital.