A country's foreign policy includes all of the policies it develops to pursue its national interests as it interacts with other countries.
National security policies, designed to protect the state, include military security as well as non-military security.
Diplomacy refers to the art and practice of conducting negotiations and developing relationships between states.
Humanitarian policies are ostensibly intended to help other countries, and include human rights policies, aid, and interventions.
Economic prosperity is necessary to achieve foreign policy goals, and despite the 2008 recession, the U.S. economy is still powerful.