A flight of Jasta 18 Pfalz D.III aircraft in their distinctive red/blue liveries, the nearest aircraft flown by Hauptmann Rudolf Berthold, commander of the unit at the time.
Hauptmann Rudolf Berthold (24 March 1891 – 15 March 1920) was a German flying ace of World War I. Between 1916 and 1918, he shot down 44 enemy planes—16 of them while flying one-handed. Berthold had a reputation as a ruthless, fearless and—above all—very patriotic fighter. His perseverance, bravery, and willingness to return to combat while still wounded made him one of the most famous German pilots of World War I. ( Source:Wikipedia).