I’m studying International Relations and I can’t help but think in terms of the libertarian paradigm when learning about the different schools. Is there any consensus on libertarian theory in this area?
The best treatment of international relations from a libertarian perspective comes, unsurprisingly, from Murray Rothbard. “War, Peace, and the State” is an absolutely life-changing essay. It’s very profound, yet also very easy to understand. You can find this important essay for free at mises.org and lewrockwell.com.