Clash of Wings would provide a glimpse at the speed and efficiency of what was to come throughout the rest of World War II. Aircraft featured: Hawker Hurricane, Supermarine Spitfire, Messerschmitt Bf 109, Messerschmitt Bf 110, Junkers Ju 88, Heinkel He 111, Dornier Do 17, Dornier Do 217, Junkers Ju 87, Bristol Blenheim, Fairey Battle and Junkers Ju 52. The Russian Front: Operation Barbarossa and Germany's failure to bring a quick resolution to that particular campaign was arguably the turning point of the war in Europe. Aircraft featured: Polikarpov I-153, Tupolev SB-2, Il-2, PE-2, Bf 109F/G, Ju 88, Ju 87, Ju 52/3m, Yak-9,
Junkers marked on the J-9's landing gear wheel covers. The corrugated duralumin wing and fuselage "skin" introduced in the J-series became a trademark of Junkers aircraft built in the 1920s and '30s. Development continued during the course of World War I, including a growing (but troublesome) partnership with Fokker, as the "Junkers-Fokker Aktiengesellschaft". Several Junkers designs were licensed to Fokker during this period. The visual similarity of Junkers and Fokker aircraft during the next decade, especially after Reinhold Platz adapted some of the Junkers design concepts, but mostly crafted in wood for the Fokker designs' wing structures instead of the all-metal