Wilhelm Josef Ritter von Thoma (11 September 1891 – 30 April 1948) was a German army officer who served in World War I, in the Spanish Civil War, and as a general in World War II. He was a recipient of the Knight's Cross of the Iron Cross. Thoma is known for his indiscretion while a POW in British captivity, when he unwittingly revealed the existence of the V-1 flying bomb and the V-2 weapons programmes. He was subject to surveillance by British intelligence and while speaking to another German officer, was recorded discussing rockets that were being tested at Kummersdorf West, which he had observed while on a visit that also included Generalfeldmarschall Walther von Brauchitsch, the Commander-in-Chief of the Army. British reconnaissance flights over Peenemünde Army Research Center in May and June 1943 brought back unmistakable images of rockets at the facility; the subsequent bombing of the site severely disrupted the programme. Military career Wilhelm Ritter von Thoma was born in Dachau in 1891. He was the son of a Bavarian tax official and became a career officer with the Bavarian Army. Thoma took part in the first World War with 3rd Bavarian Infantry Regiment (part of 2nd, then, from 1915, 11th Bavarian Infantry Division) on the Western (1914/15/16/17/18) and Eastern Front (1915/16), the Serbian Campaign (1915) and the Romanian Front in 1916/17. During the Second Battle of the Marne in July 1918 he was captured by French-American forces and became a prisoner of war until September, 1919. He was decorated with the Knight's Cross of the Bavarian Military Max Joseph Order, the highest military decoration for bravery in the Bavarian Army and was awarded the noble title of Ritter. After the war, Thoma remained in the new German army, the Reichswehr. During the Spanish Civil War, and now a colonel, he commanded the ground element of the Condor Legion, following the German intervention on the side of the Nationalists under by Francisco Franco. During Operation Barbarossa, the invasion of the Soviet Union in 1941, Thoma led the 17th Panzer Division. He then commanded the 20th Panzer Division in the Battle of Moscow and after. In December 1941, Thoma received the Knight's Cross of the Iron Cross. In September 1942, he was transferred to North Africa to take over command of the Afrika Korps, replacing Walther Nehring, who had been wounded. When Panzer Army Africa commander Stumme died