Key Structural, Geopolitical, and Domestic Constraints on Contemporary American Hegemony and Their Future Trajectories Abstract The concept of American hegemony has been a defining feature of the international system since the end of World War II, reaching its apex in the post-Cold War unipolar moment. However, in the 21st century, the endurance of U.S. global … Continue reading What are the key structural, geopolitical, and domestic constraints on contemporary American hegemony, and how might these evolve in the coming decades?