 Complete the following phrase:  Born in Berlin on December 8, 1878, Heitz joined the Prussian army on August 18, 1899. Commissioned as a second lieutet, he became battalion adjutant in 1909 and was promoted to captain in 1913. At the outbreak of World War I, he was regimental adjutant of the 36th 2nd West Prussian Field Artillery Regiment Hochmeister. He remained with his regiment during World War I, where he became a battery commander and battalion commander, and fought in 