The significance of international relations in domestic policy derives from the interconnectedness of global and national issues. International trade, security agreements, and diplomatic relations can influence local economies, social policies, and public perceptions. For example, changes in foreign trade agreements may directly affect local job markets and industries, compelling governments to adapt domestic policies accordingly. Additionally, the political landscape can shift in response to international pressures, such as humanitarian crises or environmental challenges requiring collaborative responses. Thus, policymakers must consider international relations when formulating domestic policies to navigate effectively in an increasingly globalized world.