1) A nation's foreign policy is determined by both domestic and international factors. Domestically, factors include a country's culture, history, geography, economic strength, and political system.
2) Internationally, the structure of the international system, international laws and organizations, military alliances, and relative military powers all influence a country's foreign policy choices.
3) A country's foreign policy consists of defining its national interests and desired outcomes, and determining strategies and resources to pursue these interests in interactions with other states.