Regardless, religion was always the primary trigger for a crusade. Though religion always played a part, the perceived threat to the church evolved. The first Crusade focused solely on ridding the Holy Land of Muslim forces. The popes began to use crusades to combat any perceived threat against the Catholic Church.
Midway was considered as turning point in the Pacific theater given that Americans achieved naval victory and rode straight to Tokyo in the aftermath of the battle. The Japanese suffered heavy losses and marked a turning point.