For generations, the United States of America has played a unique role as an anchor of global security and as an advocate for human freedom. Mindful of the risks and costs of military action, we are naturally reluctant to use force to solve the world's many challenges. But when our interests and values are at stake, we have a responsibility to act. That's what happened in Libya over the course of these last six weeks.

Address on interventions in Libya (March 2011)