An official website of the United States Government 
Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( lock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Photos

Snapshots of what’s happening in the Defense Department.

At the entrance of the Pentagon Memorial stands a plaque honoring victims of the Sept. 11, 2001, terrorist attacks. The two-acre park contains 184 inscribed memorial units dedicated to the 59 people aboard American Airlines Flight 77 and the 125 in the building who lost their lives that day at the Pentagon.

At the entrance of the Pentagon Memorial stands a plaque honoring victims of the Sept. 11, 2001, terrorist attacks. The two-acre park contains 184 inscribed memorial units dedicated to the 59 people aboard American Airlines Flight 77 and the 125 in the building who lost their lives that day at the Pentagon.

At the entrance of the Pentagon Memorial stands a plaque honoring victims of the Sept. 11, 2001, terrorist attacks. The two-acre park contains 184 inscribed memorial units dedicated to the 59 people aboard American Airlines Flight 77 and the 125 in the building who lost their lives that day at the Pentagon.

Photo Gallery