Question: The Rote Jager was assembled by what World War II fighter ace who served on both the Eastern and Western fronts?

Context articles: Rote Jäger
Hans Beißwenger
Hermann Graf
Emil Clade
Günther Schack
Alexander Koldunov
Werner Schröer
Ivan Kozhedub
Friedrich-Karl &quot;Tutti&quot; Müller
Stanisław Skalski

The Rote Jäger ("Red Hunters") were a short-lived German military football club active during World War II (August 1943 – November 1944).
 The team was assembled by Hermann Graf, a fighter ace and commander of German fighter pilots.
 Based near Hamburg, the unit developed into a refuge from service on the Eastern front for some German national team players.
Hans Beißwenger (8 November 1916 – 6 March 1943) was a German Luftwaffe fighter ace and recipient of the Knight's Cross of the Iron Cross with Oak Leaves 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.
 In 500 combat missions, Beißwenger was credited with 152 victories, making him the 34th highest-scoring Luftwaffe fighter pilot of World War II.
 He was "ace-in-a-day" twice, shooting down five aircraft on a single day.
 He claimed all but one of his victories over the Eastern Front.
 He was reported missing in action in March 1943.
Hermann Graf (24 October 1912 – 4 November 1988) was a German "Luftwaffe" World War II fighter ace.
 He served on both the Eastern and Western Fronts.
 He became the first pilot in aviation history to claim 200 aerial victories—that is, 200 aerial combat encounters resulting in the destruction of the enemy aircraft.
 In about 830 combat missions, he claimed a total of 212 aerial victories, almost all of which were achieved on the Eastern Front.
Emil Josef Clade (26 February 1916 – May 2010) was a Luftwaffe fighter ace in World War II, and figured in German civilian aviation after the war.
 Enlisting in the Luftwaffe in 1937, prior to World War II, Clade served throughout the war as a fighter pilot in the Western and African fronts.
 Clade is credited with either 26 or 27 aircraft kills, and was shot down himself six times.
 He commanded the flight that shot down the transport of British Lieutenant General William Gott, the newly appointed Commander of the British 8th Army.
Günther Schack (12 November 1917 – 14 June 2003) was a German World War II fighter ace who served in the Luftwaffe from 1939 until the end of World War II in 1945.
 A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.
Chief marshal of the aviation Alexander Ivanovich Koldunov (Russian: Александр Иванович Колдунов ) (20 September 1923 – 7 June 1992) was a Soviet World War II fighter ace.
 He was the eighth highest ranking Soviet fighter ace of the 1941-45 period.
Werner Schröer (12 February 1918 – 10 February 1985) was a German World War II fighter ace who served in the "Luftwaffe" from 1937, initially as a member of the ground staff, until the end of World War II in Europe on 8 May 1945, by which time he had reached the highest ranks of combat leadership.
 A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.
 Schröer was also a recipient of the Knight's Cross of the Iron Cross with Oak Leaves and Swords.
 The Knight's Cross of the Iron Cross and its higher grade Oak Leaves and Swords was awarded to recognise extreme battlefield bravery or successful military leadership.
 For the fighter pilots, the grades of the Knight's Cross were also a quantifiable measure of their success and skill.
 Werner Schröer was the second most successful claimant of air victories after Hans-Joachim Marseille in the Mediterranean.
Chief Marshal of Aviation Ivan Kozhedub (Russian: Иван Hикитович Кожедуб; Ukrainian: Іван Микитович Кожедуб; June 8, 1920 – August 8, 1991) was a Soviet military aviator and a World War II fighter ace.
 Kozhedub took a part in the Korean War as a commander of the 324th Fighter Air Division.
 He is credited with 64 +2 (P-51) individual air victories, most of them flying the Lavochkin La-5 – the top scoring fighter pilot on the Allied side during World War II.
 He is one of the few pilots to have shot down a Messerschmitt Me 262 jet.
 He was made a Hero of the Soviet Union on three occasions (4 February 1944; 19 August 1944; 18 August 1945).
Friedrich-Karl "Tutti" Müller (25 December 1916 – 29 May 1944) was a German World War II fighter ace who served in the Luftwaffe from 1935 until his death on 29 May 1944.
 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 140 aerial victories claimed in more than 600 combat missions.
 He claimed 8 aerial victories during the Battle of France, 89 on the Eastern Front, and 51 victories against the Western Allies, including 17 four-engined bombers.
Stanisław Skalski {'1': ", '2': ", '3': ", '4': "} (27 November 1915 – 12 November 2004) was a Polish fighter ace of the Polish Air Force in World War II, later rising to the rank of Brigadier General.
 Skalski was the top Polish fighter ace of the war and the first Allied fighter ace of the war, credited, according to official lists, with 18 victories and two probable.
 Some sources, including Skalski himself, give a number of 22 victories.