How energy affects world politic

From Erik Voeten

" The fact that China and the U.S. both currently rely on oil imports may be an important stabilizing force as it creates a shared interest in stable global oil markets and thus in ensuring that the Oceans are navigable, the Middle East is relatively stable, and that rules and norms whose violations could trigger instability are obeyed. Energy independence has long been thought to free U.S. foreign policy from undesirable constraints. But would the world be more stable if the U.S. had fewer constraints on how it exercises its foreign policy? "