<sod>On 15 March 1898, Strauss joined the [[Imperial German Army]]. After serving various roles throughout [[World War I]], Strauss was retained in the {{Lang|de|[[Reichswehr]]}}. On 1 December 1934 he was promoted to ''[[Generalmajor]]''.<eod>
<sod>On 15 March 1898, Strauss joined the [[Imperial German Army]]. After serving various roles throughout [[World War I]], Strauss was retained in the {{Lang|de|[[Reichswehr]]}}. On 1 December 1934 he was promoted to ''[[Generalmajor]]''. As commander of the II Army Corps, Strauss participated in the German [[Invasion of Poland]]. On 30 May 1940, he was appointed commander of the [[9th Army (Wehrmacht)|9th Army]] in France.<eod>