41. He was made a General Staff Officer , Grade 1 in 1915, and appointed Director of Staff Duties in 1916. 42. From June 1919 to August 1920, Butler was a General Staff Officer in Territorial Army between 1935 and 1939, 43. From 1936 and 1945, he was employed as a General Staff Officer in the Middle East, Australia and Britain. 44. From 1942 to 1944 he served as General Staff officer to the High Command of the Wehrmacht ( OKW ). 45. He was then posted to the newly formed Yeomanry Mounted Division as a General Staff Officer ( Grade 3 ). 46. From December 1938 to April 1940 he was General Staff Officer Grade 1 ( GSO1 ) of the 3rd Division. 47. In a year or two Chamberlain returned to the Hearst service, and until his death acted as general staff officer . 48. He went on to be a General Staff Officer at the Commandant of the British Sector in Berlin in 1983. 49. Immediately prior to World War I, Lossow was a lieutenant colonel and a general staff officer without a specific assignment. 50. It was reserved solely for General Staff officers for " the most outstanding strategic decisions affecting the course of the war ".
