Complex sentence: He served with a "Gebirgsschützenregiment" and was discharged in 1919 having reached the rank of Oberleutnant.Rauter took part in the "Kärntner Freiheitskampf" of 1919, and from May until July 1921 he fought in the Freikorps Oberland in Oberschlesien.
Split into simpler sentences: He served with a "Gebirgsschützenregiment" and was discharged in 1919 having reached the rank of Oberleutnant. He took part in the "Kärntner Freiheitskampf" of 1919, and from May until July 1921 he fought in the Freikorps Oberland in Oberschlesien.