In Robert D. Kaplan's "The Return of Marco Polo's World," the author discusses the weakening geopolitical positions of Russia and China, which are facing significant internal challenges. These challenges encompass ethnic, political, and economic issues that are deeply rooted and serious, leading to questions about the stability and cohesion of these nations. In contrast, Kaplan argues that the United States' position, while it may be facing some declines, remains far more secure and stable.

Kaplan highlights the structural difficulties within Russia and China, suggesting that their futures as unified states could be at risk. This contrasts sharply with the United States, which maintains a stronger foundation despite its own adversities. The inherent instability within Eurasia’s key players emphasizes the different trajectories of global power and underscores the necessity for American strategic interests in the 21st century.