Date of Award

Spring 5-18-2019

Degree Name

Bachelor of Arts (BA)


Christopher Toulouse, Ph.D.


International relations since the end of the Second World War has been dominated by the United States who promised free trade. This led to liberalism becoming the dominate theory in international relations, being the major guiding principle in decisions of international relations made by American Presidents. To ensure free trade amongst nations however, this required a secure world, leading the United States to act as the world’s police to ensure international security for global trade. After the September 11th attacks on the World Trade Centers, dynamics of international relations changed. How Post 9/11 Presidents: Bush, Obama and Trump made their decisions can be explained using the institutionalism, constructivism and realist theories of international relations. Despite the major change 9/11 had on the international order, liberalism remains the dominate theory of international relations.