Question: In what war did Werner Schröer and Hans-Joachim Marseille fly?

full_context: Document 1: Kurt Welter: 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.
Document 2: Günther Schack: 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.
Document 3: Wilhelm Crinius: Wilhelm Crinius (2 December 1920 – 26 April 1997) 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. Crinius is credited with 114 aerial victories claimed in approximately 400 combat missions. He recorded 100 victories over the Eastern Front. Of his 14 victories claimed over the Western Front, one was a four-engined bomber. On 23 September 1942, Crinius became the only German fighter pilot to be awarded the Knight's Cross of the Iron Cross ("Ritterkreuz des Eisernen Kreuzes") and the Knight's Cross of the Iron Cross with Oak Leaves ("Ritterkreuz des Eisernen Kreuzes mit Eichenlaub") simultaneously.
Document 4: Hermann Greiner: Georg-Hermann Greiner (2 January 1920 – 26 September 2014) was a Luftwaffe night fighter ace who served during World War II. Greiner was recipient of the Knight's Cross of the Iron Cross with Oak Leaves—the fourth highest German award by war's end. He was also a squadron commander in the prestigious "Nachtjagdgeschwader" 1 ("NJG" 1—Night Fighter Wing 1), the most successful night fighter interceptor unit of any nation in the history of aerial warfare.
Document 5: Manfred von Richthofen: Manfred Albrecht Freiherr von Richthofen (2 May 1892 – 21 April 1918), also known as the "Red Baron", was a fighter pilot with the German Air Force during World War I. He is considered the ace-of-aces of the war, being officially credited with 80 air combat victories.
Document 6: Adolf Dickfeld: Adolf Dickfeld (20 February 1910 – 17 May 2009) was a World War II Luftwaffe officer and 136 victories Flying ace. A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat. He was also a recipient of the Knight's Cross of the Iron Cross with Oak Leaves (German: "Ritterkreuz des Eisernen Kreuzes mit Eichenlaub" ). The Knight's Cross of the Iron Cross and its higher grade Oak Leaves was awarded to recognise extreme battlefield bravery or successful military leadership.
Document 7: Hans-Joachim Marseille: Hans-Joachim Walter Rudolf Siegfried Marseille (13 December 1919 – 30 September 1942; ] ) was a German fighter pilot during World War II. A flying ace, he is noted for his aerial battles during the North African Campaign. Marseille claimed all but seven of his 158 victories against the British Desert Air Force over North Africa. No other pilot claimed as many Western Allied aircraft as Marseille.
Document 8: Joachim Kirschner: Joachim Kirschner (7 June 1920 – 17 December 1943) was a German World War II Luftwaffe 188 victories flying ace. A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat. He was also a recipient of the Knight's Cross of the Iron Cross with Oak Leaves. The Knight's Cross of the Iron Cross and its higher grade Oak Leaves was awarded to recognise extreme battlefield bravery or successful military leadership.
Document 9: Hans-Arnold Stahlschmidt: Hans-Arnold Stahlschmidt (15 September 1920 – missing in action 7 September 1942) was a German fighter pilot during World War II. A flying ace, he was credited with 59 victories against the Western Allies in North Africa. Stahlschmidt was a close friend of the prominent ace Hans-Joachim Marseille.
Document 10: Werner Baake: Werner Baake (1 November 1918 – 15 July 1964) was a German "Luftwaffe" night fighter ace and recipient of the Knight's Cross of the Iron Cross during World War II. The Knight's Cross of the Iron Cross was awarded to recognize extreme battlefield bravery or successful military leadership. Baake claimed 41 nocturnal aerial victories in 195 combat missions. Baake was the 36th most successful night fighter ace of World War II, and of aerial warfare. Baake's total surpassed that of all Allied night fighter pilots.
Document 11: Erich Hartmann: Erich Alfred Hartmann (19 April 1922 – 20 September 1993), nicknamed "Bubi" ("The Kid") by his German comrades and "The Black Devil" by his Soviet adversaries, was a German fighter pilot during World War II and the most successful fighter ace in the history of aerial warfare. He flew 1,404 combat missions and participated in aerial combat on 825 separate occasions. He claimed, and was credited with, shooting down 352 Allied aircraft—345 Soviet and 7 American—while serving with the "Luftwaffe". During the course of his career, Hartmann was forced to crash-land his fighter 14 times due to damage received from parts of enemy aircraft he had just shot down or mechanical failure. Hartmann was never shot down or forced to land due to enemy fire.
Document 12: Werner Mölders: Werner Mölders (18 March 1913 – 22 November 1941) was a German fighter pilot during World War II and a leading German fighter ace. He became the first pilot in aviation history to claim 100 aerial victories—that is, 100 aerial combat encounters resulting in the destruction of the enemy aircraft, and was highly decorated for his achievements. Mölders was instrumental in the development of new fighter tactics that led to the finger-four formation. He died in an air crash in which he was a passenger.
Document 13: Jagdgeschwader 52: "Jagdgeschwader" 52 (JG 52) (52nd Fighter Wing) of the Luftwaffe, was the most successful fighter-wing of all time, with a claimed total of more than 10,000 victories over enemy aircraft during World War II. It was the unit of the top three scoring flying aces of all time, Erich Hartmann, Gerhard Barkhorn and Günther Rall. The unit flew exclusively with the various versions of the Messerschmitt Bf 109 throughout the war.
Document 14: Erich Rudorffer: Erich Rudorffer (1 November 1917 – 8 April 2016) was a German "Luftwaffe" fighter ace who was one of a handful who served with the "Luftwaffe" through the whole of World War II. He was the 7th most successful fighter pilot in the history of air warfare, with 222 victories claimed. Rudorffer fought in all the major German theaters of war, including the European and Mediterranean Theater of Operations and the Eastern Front. During the war he flew more than 1000 combat missions, engaging in aerial combat over 300 times. Rudorffer was shot down by flak and enemy fighters 16 times and had to take to his parachute nine times. He distinguished himself by shooting down 13 enemy planes in 17 minutes. His 222 aerial victories included 58 heavily armoured Il-2 Sturmovik ground attack aircraft.
Document 15: Werner Schröer: 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.
ground_truth: World War II