Because the person Tandy killed or not killed at that time was Hitler. If he had chosen to shoot at that time, then there might be no Hitler in the world, and World War II would not have happened. Perhaps Too many people would not suffer and die. But he chose not to shoot, so the world has undergone earth-shaking changes, and this situation is also uncontrollable.
Because Tandy was a British soldier, he was very brave and had won many medals of honor. During a battle, Tandy met the then German corporal Hitler, but no one knew about Hitler at that time. World War II would happen, so Tandy found this wounded German soldier at that time. Tandy immediately aimed his gun at the German soldier. Once he pulled the trigger, the German soldier died instantly. The German soldiers also saw Tandy, who was injured and had no strength to fight Tandy. But the German soldiers were very calm and desperate, just looking at Tandy and doing nothing.
Another reason is that although the British and the Germans fought on the battlefield, it was just a fight between the leaders of two countries. There was no deep hatred between the British and the Germans and ordinary people. Tandy did not kill the soldier and let go of the German soldier. The German soldier remembered Tandy, nodded to him and left. This German soldier was the devil Hitler during World War II!
In fact, even if Hitler was killed at that time, it does not mean that the Second World War will not happen. This is a necessary process of human historical progress. Without Hitler, another person may appear who may be more cruel than Hitler. . At that time, Tandy, as a soldier, did nothing wrong by letting go of an enemy soldier who had no ability to resist, so no one could blame him.