They are "power breakers" they bring conflicting groups together. The encourage compromise- develop policies favorable to their interests or the groups that support them, organize and persuade voters to elect their candidates to office
No the Milky Way galaxy has not merged with any other galaxy
China was influenced by foreigners politically, socially, and economically during the Ming Dynasty. Missionaries come into China bringing both Christianity and technology. China struggled foreigners influence by kicking out the Mongols. Also, China began to detach itself and limited the foreigners’ trading posts.
