Flying with this wing, Glunz claimed his first aerial victory on 7 May 1941 on the Western Front over a Royal Air Force fighter aircraft.

In preparation of Operation Barbarossa, JG 52 was moved east where Glunz claimed three Soviet aircraft destroyed.

Glunz then became a flight instructor with the National Socialist Flyers Corps 11/16 of the Nord Gruppe (northern group), teaching members of the Hitler Youth to fly.

Glunz joined the military service of the Luftwaffe on 1 September 1939, the day German forces invaded Poland starting World War II in Europe.

Due to adverse weather conditions, the attack was called off, only a Schwarm, a flight of four aircraft, under the leadership of Oberleutnant Siegfried Simsch, assumed to have reached the target.

[7] The pilots Glunz, Simsch, Feldwebel Georg Mayr and Unteroffizier Hans Sembill were punished by Hermann Göring personally.

[9] Flying from Katwijk on 7 May, he claimed his first aerial victory when he shot down a RAF Supermarine Spitfire fighter 5 kilometers (3.1 miles) east of Deal.

Gruppe was commanded by Hauptmann Walter Adolph and based at Moorsele Airfield, Belgium near the English Channel.

During this encounter, Glunz claimed his first aerial victory with JG 26, his sixth in total, when he shot down a Spitfire fighter near Bergues.

That day, Glunz made his maiden flight on the Fw 190 under the guidance of Oberleutnant Karl Borris who was leading the training program.

[27] Glunz received the Front Flying Clasp of the Luftwaffe for fighter pilots in Silver (Frontflugspange für Jagdflieger in Silber) on 1 October.

412 Squadron, based at RAF Wellingore, Glunz was credited with shooting down a Spitfire fighter 15 kilometers (9.3 miles) north of Calais.

The objective of this operation was to give the German battleships Scharnhorst and Gneisenau and the heavy cruiser Prinz Eugen fighter protection in the breakout from Brest to Germany.

In support of this, the Luftwaffe, formulated an air superiority plan dubbed Operation Donnerkeil for the protection of the three German capital ships.

[36] On 10 April, the RAF flew two "Rodeos", providing a diversion for a "Ramrod" short range bomber attack missions targeting Boulogne.

Gun camera footage revealed two hits on a Fw 190 and Beurling was credited with his first aerial victory although Glunz returned safely.

[48] On 5 September, VIII Bomber Command targeted the Port of Le Havre and the Sotteville-lès-Rouen railroad yards, escorted by RAF Spitfire fighters from No.

General Galland had been unhappy for some time about the JG 26's lack of success against the USAAF strategic aerial bombardment campaign in Defense of the Reich.

[56] He flew a reconnaissance mission to England on 19 January 1943, patrolling the English coast from Hastings to Dover without encountering any opposition.

The Gruppe claimed four aerial victories over the escorting fighters, including a Spitfire by Glunz which was not confirmed, for the loss of one pilot killed in action.

[73][74] During the Schweinfurt-Regensburg mission on 17 August 1943, Glunz shot down a B-17 bomber of the 305th Bombardment Group northwest of Schouwen,[75] crashing at Averbode.

[55] Two days later, Glunz claimed a Martin B-26 Marauder bomber from the 323d Bombardment Group (Medium) shot down over northern France.

[83][84] On 14 October, during the second Schweinfurt raid also called "Black Thursday", Glunz claimed an unconfirmed aerial victory over an escorting P-47 of the 353rd Fighter Group near Budel.

Intercepting the returning bombers, Glunz claimed a 95th Bombardment Group B-17 shot down west of Bergen aan Zee.

Also present at the ceremony were Friedrich Lang, Erich Hartmann and Heinz-Wolfgang Schnaufer who receive the Knight's Cross of the Iron Cross with Oak Leaves and Swords (Ritterkreuz des Eisernen Kreuzes mit Eichenlaub und Schwertern), and Horst Kaubisch and Eduard Skrzipek who were also awarded the Oak Leaves.

[116] On 21 September, during the Battle of Arnhem, Glunz shot down an unarmed Douglas C-47 Skytrain transport aircraft near Nijmegen on a mission to drop reinforcements for the British 1st Airborne Division.

Staffel in its attack on Brussels-Evere airfield during Operation Bodenplatte, an attempt to gain air superiority during the stagnant stage of the Battle of the Bulge.

In addition, Glunz made nine strafing attacks on Brussels-Evere airfield, claiming five aircraft destroyed, plus two further damaged, including one through the open door of a hangar.

The nearest he came to losing an aircraft in combat was on 13 October 1944, when a broken oil pipe caused his engine to fail while fighting with two P-47 fighters.

[134] Following his racing career, he took a course on driver's education and founded his own driving school in Lüdenscheid where he lived with his wife Iris.