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This Day in American History

March 19

1 historic event on this date

Historical2003

Iraq War Begins

The United States launched military operations in Iraq, beginning a conflict that would last over eight years. The war was authorized by Congress but generated significant debate about the accuracy of intelligence used to justify the invasion and the constitutional limits of executive war powers.

Why It Matters

The Iraq War reignited fundamental questions about the separation of powers in wartime, the role of Congress in authorizing military force, and the importance of informed civic debate over matters of war and peace.

Explore the Principles Behind the History

Every event in American history connects to the founding principles. Discover the ideas that shaped these moments.

View the 28 Founding Principles