Peace and Truce of God
In response to the Islamic conquests of the former Byzantine Empire, numerous Catholic military orders were set up following the First Crusade. The founding of such orders suited the Catholic church's plan of channeling the devotion of the European nobility toward achieving the Church's temporal goals, and it also complemented the Peace and Truce of God. The foundation of the Knights Templar in 1118 provided the first in a series of tightly organized military forces for the purpose of opposing Islamic conquests in the Holy Land and in the Iberian Peninsula — see the Reconquista — as well as Islamic invaders and pagan tribes in Eastern Europe which were perceived as threats to the Church's supremacy.