The role of foreign policy in a nation's security strategy is to align diplomatic efforts and international relations with national interests and safety. Effective foreign policy helps to establish alliances, promote economic stability, and prevent conflicts that could threaten security. By addressing global challenges such as terrorism, nuclear proliferation, and climate change, countries can enhance their preparedness against external threats. Additionally, a well-articulated foreign policy can build trust with other nations, facilitating cooperation on issues like trade and humanitarian efforts, which ultimately bolster a nation’s overall security posture.