Gregory I increased the political power of the pope because he reformed and rewrote some of the aspects which were expected of the papacy, but which were things he did not want to do anymore. Upset by the privacy he used to have as a monk but which he no longer had anymore, he set out to involve himself more in the larger population's life by sending missionaries to England and by writing dialogues commenting on many different things. He also reformed and revised Roman worship of his day, which included more political power for the pope.
If i'm correct They wanted to keep the Soviet from expanding
According to Bernard of Clairvaux, the goal of the crusade was to battle the pagan Slavs "until such a time as, by God's help, they shall either be converted or deleted".
They were classified into four social classes: the king and aristocracy, the military, artisans and craftsmen, and peasants. Members of the aristocracy were the most respected social class, and were responsible for governing smaller areas of the dynasty.
While most African Americans serving at the beginning of WWII were assigned to non-combat units and relegated to service duties, such as supply, maintenance, and transportation, their work behind front lines was equally vital to the war effort.