- Second World War (1939-1945)
- Kommandeur Panzerjäger-Abteilung "Großdeutschland" / Panzergrenadier-Division "Großdeutschland"
- Awarded on:
- May 8th, 1945
During the battle near Standensen on 15.04.1945 Walle destroyed nine British tanks with panzerfausts and along with his comrades Stützle and Anding were able to temporarily check the Allied advance. For this Walle was awarded the Knight's Cross.