Born in Hejnice, Romm, a half-Jew by the Nuremberg Laws, joined the military service in the Luftwaffe in 1939.

He was then transferred to Jagdgeschwader 3 "Udet" (JG 3—3rd Fighter Wing) which was fighting in defense of the Reich on the Western Front.

[1] According to Bryan Mark Rigg, Romm was a half-Jew by the Nuremberg Laws who joined the Luftwaffe and served with distinction.

[4] World War II in Europe had begun on Friday, 1 September 1939, when German forces invaded Poland.

At the time of Romm's posting to JG 51, I. Gruppe was based at Jesau, present-day Juschny, located southeast of Königsberg, for conversion training to the Focke-Wulf Fw 190 radial engine fighter.

Here, the Gruppe was subordinated to the Geschwaderstab of Jagdgeschwader 54 (JG 54—54th Fighter Wing) in the combat area of Army Group North.

[6] Here on 22 November, Romm made an emergency landing in his Fw 190 A-3 (Werknummer 0291—factory number) due to engine failure 5 kilometers (3.1 miles) north of Sychyovka.

[7] Fighting in the Battle of Velikiye Luki, Romm claimed his first aerial victory on 4 December in support of 9th Army near Rzhev when he shot down an Ilyushin Il-2 ground-attack aircraft.

The battle began on 5 July 1943 with I. Gruppe of JG 51 supporting the German 9th Army in its northern attack on the Kursk salient.

[10] That day, Romm claimed two aerial victories, taking his total to ten, an Il-2 ground-attack aircraft and a Mikoyan-Gurevich MiG-3 fighter.

[13] In September 1943, Romm was transferred to Ergänzungs-Jagdgruppe Ost, specialized training unit for new fighter pilots destined for the Eastern Front, as an instructor.

Sturmgruppe of Jagdgeschwader 3 "Udet" (JG 3—3rd Fighter Wing) as fourth squadron fighting in Defense of the Reich.

There, the Staffel was underwent conversion training to the Fw 190 radial engine powered fighter aircraft.

Dahl and Moritz drove the attack to point-blank range behind the Liberators of the 492d Bombardment Group before opening fire.

[21] This figure includes one B-24 bomber claimed shot down by Romm,[22] taking his total to 77 aerial victories.

[24] The authors Prien, Stemmer and Bock state that the consolidated attack flown in close formation by the Sturmgruppe resulted in overclaiming of aerial victories caused by the confusing combat situation.

[31] In early December, Romm was transferred to I. Gruppe of Ergänzungs-Jagdgeschwader 1, a replacement training unit for fighter pilots.

[32] On 12 January 1945, Soviet forces launched the Vistula–Oder offensive advancing into German-held territory, capturing Kraków, Warsaw and Poznań.

Sturmgruppe was ordered to relocate from Gütersloh Airfield to Märkisch Friedland, present-day Mirosławiec, located approximately 75 kilometers (47 miles) east of Stargard.

On 27 January, Märkisch Friedland had to be abandoned and the Sturmgruppe retreated to an airfield 75 kilometers (47 miles) southwest of Stargard.

Over the next weeks, the Sturmgruppe predominantly flew fighter-bomber missions in support of German ground forces retreating towards the Oder.

During this mission, Luftwaffe pilots claimed four aerial victories, including an Il-2 ground-attack aircraft by Romm.

On 24 April, Romm's Fw 190 D-9 suffered engine failure during aerial combat with Il-2 ground-attack aircraft.