The primary function of the executive branch in a government is to implement and enforce laws. This branch, led by the President or equivalent head of state, is responsible for administering day-to-day operations and ensuring that legislation passed by the legislative branch is put into action. Additionally, the executive branch has significant roles in foreign affairs, defense, and governance of federal agencies. By carrying out policies and making executive decisions, this branch operates within a framework of checks and balances designed to prevent abuses of power. Its effectiveness often determines public perceptions of governmental performance and responsiveness.