What were the contributions made to political philosophy by St. Thomas Aquinas and St. Augustine?

Question

slavery could be a topic, or even property rights.

Answer 1

St Augustine of Hippo developed the concept of the "just war", a necessary construct for an imperial religion. How otherwise could a pacifist religion condone war? He was also responsible for the wonderful quote that went something like "God. Make me pure, but not yet."

Answer 2

I found something about "Just War" that might be of interest

http://www.monksofadoration.org/justwar.html

a detailed lecture on Aquinas's philosophy you will find here:
http://www2.nd.edu/Departments//Maritain/etext/hwp220.htm

and here you will find a brief summary on both Thinkers philosophy:

http://plato.stanford.edu/entries/medieval-political/