The Soviet Operation Bagration struck the 260. Infanterie-Division on the 24.06.1944. Two days later the Division started to pull back, with Grenadier-Regiment 470 (commanded by Strohm) forming the rearguard. On the 27.06.1944 the Regiment pushed through the Soviet-held village of Starosselje in a textbook attack, and thereby enabled the Division to carry on to Gorodok. After days of fighting retreat the area of Velikij-Bos / Belaja Lusha was reached on the 05.07.1944. Here it was necessary to break through the seventh and final Soviet blocking position. The Kampfgruppe Grenadier-Regiment 470 with elements of Pionier-Bataillon 653 reached the swampy area around Petrovichi, and they managed to reach the German lines in small groups. For his role in leading his men during the long retreat, Strohm was awarded the Oakleaves.
Awarded posthumously.