After the September 11 attacks, the United States became involved in military conflicts in both Iraq and Afghanistan. Even though the attacks were clear acts of war, the President couldn't just declare war and go after those responsible. It was important that America act quickly, but there was a process that had to be followed to make sure going to war was something that was in our national interests.

It wasn't always this way. In this lesson you will learn about how the war powers of Congress and the President changed as a result of the Vietnam War.

The Constitution mentions war powers in two sections. In Article I, Section 8, it grants Congress the powers to declare war, raise and support armies, and to provide and maintain a navy. In Article II, Section 2, it declares that the President is "Commander in Chief of the Army and Navy of the United States."

The Constitution divides war powers between the legislative branch and the executive branch. The writers of the Constitution did not want one branch to have all the power during wartime. Both branches need each other when making decisions about war.

Respond to the questions that follow.

  1. After looking at these two sections of the Constitution, why might it appear that Congress has more power than the President during wartime? Interactive popup. Assistance may be required.

    Check Your Answer

    It does appear that Congress has more power because they can (1) declare war and (2) decide how much money should be spent to support the war. The President acts as Commander in Chief which means he makes decisions about war strategy and troop strength. If we're keeping score, it seems the Congress wins here 2-1.Close Pop Up
  2. Show the war making powers of our government.

    Interactive exercise. Assistance may be required. Click and drag the three phrases below to the appropriate places on the scale of power below.