This module will explore the wellsprings of power in the 21st century, how the sources of state power have changed over time, and the effect of the balance of power on grand strategic choices. The first goal of this module is to introduce students to the key questions regarding what makes states powerful and how to measure state power. The second goal of the course is to make students understand why these questions are important for assessing the balance of power and developing grand strategy in the 21st century.