Foreign policy involves a state using political influence to induce other states to exercise their lawmaking power in a way that benefits the influencing state. It aims to protect territorial integrity and citizen interests both within and outside the state. Additionally, foreign policy seeks to maintain international links and adopt cooperative or conflict-oriented stances towards other states to promote its own interests and security, economic interests, and influence. It is determined by internal factors like geography, culture, economic development, and external factors like the international power structure and reactions of other states.