In "The Return of Marco Polo's World," Robert D. Kaplan discusses the nuanced approach of empires, particularly highlighting America's recent experiences. He argues that a key lesson in maintaining power is recognizing when to engage and when to exercise restraint. This critical strategy is drawn from historical examples, such as Tiberius’ Rome, which thrived by avoiding involvement in all conflicts, particularly those that did not directly threaten its interests.

Kaplan emphasizes that America is now grappling with this reality, learning to prioritize strategic patience over rash military interventions. By observing conflicts rather than intervening in every battle, a more sustainable method of maintaining influence is achieved. This insight calls for a reevaluation of America’s military strategies in the face of global challenges.