The War Powers Resolution of 1973 is a federal law designed to check the president's power to commit the United States to armed conflict without congressional approval. It requires the president to notify Congress within 48 hours of deploying military forces and limits military engagement to 60 days without congressional authorization or a declaration of war. The resolution was enacted in response to the Vietnam War, aiming to ensure that both the executive and legislative branches share the responsibility for military decisions. It reflects concerns about the potential for unchecked presidential power in matters of war and peace, emphasizing the role of Congress in such decisions.