During World War II he was involved in the German takeover of Czechoslovakia[citation needed] and rose to become a Luftwaffe Generalmajor.
[1][2] Frommherz began as a two-seater pilot with the Luftstreitkräfte's Kampfstaffel (Tactical Bomber Squadron) 20 of Kagohl IV, at the Battle of Verdun and over the Somme River.
[2] On 3 March 1917, Frommherz was assigned to Jagdstaffel 2;[2] this elite squadron had been led by aviation tactical and strategic pioneer Oswald Boelcke and had been named for him after he was killed in action.
[citation needed] Flying a light blue Albatros D.III nicknamed "Blaue Maus",[3] Frommherz scored his first victory on 11 April 1917 – a No 23 Squadron RFC SPAD VII – and a Royal Aircraft Factory BE 2e as his second on the 14th.
It consisted of the yellow nose and tail common to his Jasta, along with red and black chevrons of a Staffelführer (squadron leader) painted on top of the upper wing.
[6] Frommherz's blooming career now garnered him the Knight's Cross with Swords of the House Order of Hohenzollern on 30 September 1918, when his victory total stood at 26.
The following month, he received the Knight's Cross of the Grand Duchy of Baden's Karl Friedrich Military Merit Order.
Frommherz was also nominated for the Pour le Merite, having scored the required 20 victories; however, the award was still unapproved upon the Kaiser's abdication.
[2] Beginning in 1922, the German high command ran a secret training site at Lipetsk in the Soviet Union.
[citation needed] As a Major General, he was Commander of Jagdfliegerführer Deutsche Bucht from 1 April until 30 September 1942, following Werner Junck.