Book excerpt: "Ionut Popescu explores how successful American grand strategy comes about. For most experts in the academic world of political science and in the Washington policymaking community, the answer lies in the design and implementation of a farsighted strategic plan or framework. The role of such a Grand Design is to guide the president's foreign policy actions and resource allocation decisions in the pursuit of specific long-term objectives. The alternative to following a Grand Design is usually said to consist of ad-hoc, incoherent, and ultimately unsuccessful foreign policy decision-making. But what if successful grand strategies are sometimes formed through an emergent process of learning and adaptation, instead of being the product of strategic planning and farsighted designs? Popescu argues that the Emergent Strategy model, adapted from the business strategy literature, explains some of the traditional success stories and failures of American grand strategy better than the prevalent Grand Design model. These findings suggest the need to shift the focus of policymakers away from planning for long-term objectives and toward short- and medium-term incremental learning and adaptation. Based on this new theoretical understanding of successful grand strategy being formed by either Design or Emergent elements depending on the circumstances, the book also offers a framework to help policymakers and strategic planners choose the right model and tools based on the level of uncertainty they face in the external environment"--