Ernst Hermann August Theodor Busse (15 December 1897 – 21 October 1986) was a German officer during World War I and World War II. Early life and career Busse, a native of Frankfurt (Oder), joined the Imperial German Army as an officer cadet in 1915 and was commissioned in February 1917. He also won the Knight's Cross with Swords of the Hohenzollern Order. After the armistice, he was accepted as one of 2,000 officers into the new Reichswehr in which he steadily rose in rank. World War II Busse was a General Staff officer in April 1939 and prepared a training program that was approved by the Chief of the General Staff in August and covered a period from 1 October 1939 to 30 September 1940. Between 1940 and 1942, he served as the Chief of Operations to General (later Field Marshal) Erich von Manstein in the 11th Army on the Eastern Front. He remained serving on von Manstein's staff from 1942 to 1943 as Chief of Operations of Army Group Don and then from 1943 to 1944 he was Chief of Staff of Army Group South, both on the Eastern Front. Serving with Army Group South, he was awarded the Knight's Cross of the Iron Cross on 30 January 1944. He spent a short time in reserve and was then appointed General Officer Commanding German 121st Infantry Division. In July 1944, he commanded I Army Corps. While Busse took command of the 9th Army on 21 January 1945, his appointment was never confirmed. It would appear that it was customary for commanders of formations of the status of an Army and higher to be on six months probation before their final appointments as Commanders-in-Chief. Germany surrendered unconditionally before Busse's probationary period had expired. During the last five months of the war, Busse commanded the 9th Army, which had become part of Army Group Vistula. As the Soviets continued to advance into Germany, he fought to protect the German capital. Specifically, Busse commanded the 9th Army during the Battle of Seelow Heights and the Battle of the Oder-Neisse. In April 1945, during the Battle of Berlin, Busse's Ninth Army was cut off from the armies on its flanks and almost encircled by Soviet Forces. General Gotthard Heinrici tried to convince Busse to withdraw several times, but Busse refused even to consider withdrawal unless a specific command arrived from the Führer.