Members of the Society of Jesus are expected to accept orders to go anywhere in the world, where they might be required to live in extreme conditions. This was so because Ignatius, its leading founder, was a nobleman who had a military background. Accordingly, the opening lines of the founding document declared that the society was founded for "whoever desires to serve as a soldier of God,[a] to strive especially for the defence and propagation of the faith, and for the progress of souls in Christian life and doctrine".[9] Jesuits are thus sometimes referred to colloquially as "God's soldiers",[10] "God's marines",[11] or "the Company".[12] The society participated in the Counter-Reformation and, later, in the implementation of the Second Vatican Council.
https://en.wikipedia.org/wiki/Society_of_Jesus
https://www.fulcrum7.com/blog/2018/4/30/jerry-brown-a-jesuit-for-all-seasons