This document provides a midterm examination submitted by a group of students analyzing the end of the Cold War through four international relations theories: realism, liberalism, Marxism, and constructivism. It begins with an introduction on simplifying IR theory for novices. It then provides background on the Cold War between the US and Soviet Union and their competing ideologies. The analysis section examines why the Cold War happened through each of the four theoretical perspectives and provides a table summarizing them. It then analyzes the Cold War specifically through the lenses of realism, liberalism, Marxism, and constructivism in 3-4 sentences for each perspective.