From wikipedia

“Although disputed, Tandey allegedly encountered Adolf Hitler at the French village of Marcoing on 28 September 1918, while Tandey was serving with the 5th Duke of Wellington’s Regiment. That day, Tandey took part in a battle for which he would be awarded the VC for bravery. As the battle neared its end, a wounded German soldier wandered into Tandey’s line of fire and he chose not to shoot. The German soldier saw him lower his rifle and nodded his thanks before wandering off. Although Tandey reputedly commonly spared wounded and disarmed German soldiers, the soldier from that day is dubiously claimed to have been Hitler. Hitler, however, took his second leave from military service from 10–28 September 1918, indicating that he was still in Germany at the time. Tandey was decorated with the VC in late 1919, after which reports of the ceremony circulated with a picture of Tandey carrying a wounded soldier during the First Battle of Ypres (1914), which Hitler may have become aware of.”