After from a leg wound in the war, St. Ignatius of Loyola founded a new order of priests called the Society of Jesus (or Jesuits) and he had the Jesuits do work around the world.
The Jesuits were at the service of the pope and they advised the pope and kings.
The Jesuits realized that we are all children of God and they spread all over the world which contributed to the Reformation of the Church. And this was all set into place by St. Ignatius of Loyola.
The work he did was seen as a counter to the works and teachings of Martin Luther.
We should learn from his teachings because he encouraged his followers to be universal and spread their word around the world like God calls us to.