I believe it was France in the D-Day Invasions, that was a massive assault on the beaches and ended in the Allied forces pushing through the Nazi defenses.
Answer:
To be forgiven for past sins. The Pope offered forgiveness for anyone who took part. This was important for knights who had killed many people in battle.
Explanation:
He spread Buddhism throughout eastern Asia after he converted to Buddhism and gave up his warrior life. His name was Asoka.