In the United States, the responsibility for making treaties lies primarily with the President, who negotiates agreements with other countries. However, these treaties require the approval of a two-thirds majority in the Senate to become legally binding. This system ensures a balance of power between the executive and legislative branches, as both must collaborate in the treaty-making process. Through this framework, the U.S. promotes diplomacy while maintaining a system of checks and balances that safeguards against unilateral executive action in foreign affairs.