Max-Hellmuth Ostermann (11 December 1917 – 9 August 1942) was a "Luftwaffe" fighter ace during World War II.
 A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.
 He is credited with 102 enemy aircraft shot down claimed in over 300 combat missions.
 The majority of his victories were claimed over the Eastern Front with eight claims over the Western Front and one over Belgrade.
 Ostermann was of such short height that wooden blocks had to be attached to his rudder pedals for him to engage in tight turning aerial combat.
Kurt Welter (25 February 1916 – 7 March 1949) was a German "Luftwaffe" fighter ace and the most successful "Jet Expert" of World War II.
 A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.
 He claimed a total of 63 aerial victories—that is, 63 aerial combat encounters resulting in the destruction of the enemy aircraft—achieved in 93 combat missions.
 He recorded 56 victories at night, including 33 Mosquitos, and scored more aerial victories from a jet fighter aircraft than anyone else in World War II and possibly in aviation history.
 However this score is a matter of controversy; research of Royal Air Force losses suggests Welter overclaimed Mosquito victories considerably.
Werner Streib (13 June 1911 – 15 June 1986) was a German "Luftwaffe" military aviator during World War II, a night fighter ace credited with 68—one daytime and 67 nighttime—enemy aircraft shot down in about 150 combat missions.
 All of his nocturnal victories were claimed over the Western Front in Defense of the Reich missions against the Royal Air Force's Bomber Command.
Josef "Sepp" Wurmheller (4 May 1917 – 22 June 1944) was a German "Luftwaffe" pilot during World War II, a fighter ace credited with 102 enemy aircraft shot down in over 300 combat missions.
 He claimed the majority of his aerial victories over the Western Front, and nine over the Eastern Front.
 Of his 93 victories over the Western Allies, at least 18–20 were four-engined bombers and 56 were against Supermarine Spitfire fighters.
Herbert Ihlefeld (1 June 1914 – 8 August 1995) was a German "Luftwaffe" military aviator during the Spanish Civil War and World War II, a fighter ace credited with 132 enemy aircraft shot down in over 1,000 combat missions.
 He claimed nine victories in the Spanish Civil War, and during World War II, 67 on the Eastern Front and 56 on the Western Front, including 15 four-engined bombers and 26 Supermarine Spitfires.
 He survived being shot down eight times during his 1,000 combat missions.
Wilhelm Herget (30 June 1910 – 27 March 1974) was a German "Luftwaffe" military aviator during World War II, a night fighter ace credited with 73—15 daytime and 58 nighttime—enemy aircraft shot down in over 700 combat missions.
 The majority of his victories were claimed over the Western Front in Defense of the Reich missions against the Royal Air Force's Bomber Command.
Josef "Pips" Priller (] ) (27 July 1915 – 20 May 1961) was a German military aviator in the Luftwaffe during World War II, a fighter ace credited with 101 enemy aircraft shot down in 307 combat missions.
 All of his victories were claimed over the Western Front, including 11 four-engine bombers and at least 68 Supermarine Spitfire fighters.
Hans Robert Fritz Hahn (14 April 1914 – 18 December 1982) who was nicknamed "Assi" was a German "Luftwaffe" military aviator during World War II, a fighter ace credited with 108 enemy aircraft shot down in 560 combat missions.
 He claimed 66 victories over the Western Front, of which 53 were Supermarine Spitfires. Of the 42 victories he recorded over the Eastern Front, at least seven were Il-2 Sturmovik ground-attack aircraft.
The Supermarine Spitfire is a British single-seat fighter aircraft that was used by the Royal Air Force and many other Allied countries before, during and after World War II.
 The Spitfire was built in many variants, using several wing configurations, and was produced in greater numbers than any other British aircraft.
 It was also the only British fighter to be in continuous production throughout the war.
 The Spitfire continues to be popular among enthusiasts; about 54 remain airworthy, while many more are static exhibits in aviation museums throughout the world.
Joachim Müncheberg (31 December 1918 – 23 March 1943) was a German "Luftwaffe" military aviator during World War II, a fighter ace credited with 135 enemy aircraft shot down in over 500 combat missions.
 The majority of his victories were claimed over the Western Front, with 33 claims over the Eastern Front.
 Of his 102 aerial victories achieved over the Western Allies, 46 were against Supermarine Spitfire fighters.

Question: Josef "Pips" Priller, was a German military aviator in the Luftwaffe during World War II, a fighter ace credited with 101 enemy aircraft shot down in 307 combat missions, all of his victories were claimed over which location, including 11 four-engine bombers and at least 68 Supermarine Spitfire fighters, a British single-seat fighter aircraft that was used by the Royal Air Force and many other Allied countries before, during and after World War II?
Answer: Western Front