Paul Poast

Protecting Their Own? The Real Reasons States Build Border Walls

Why do some nations build walls along their borders? In some cases, such walls are defensive structures aimed at blunting...

Why Do Former Rivals Form Non-Aggression Pacts?

Non-aggression pacts, designed to reduce the possibility of future conflict, are distinctive from other military alliances because they do not...

How Should We Understand Alliance Formation in a Multilateral World?

For several decades, bilateral modeling has been the central tool in much of the theoretical and empirical research on alliance...