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

Official websites use .gov

.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.

Multimedia

Videos

Play Play

Defense Leaders Testify on Cyber Posture 

  • Defense.gov
  • May 16, 2025 | 01:00:28

Defense Department leaders speak with the House Armed Services Committee’s cyber, information technologies and innovation subcommittee regarding the department’s cyberwarfare, cyber defense postures and the health of the Cyber Mission Force during a hearing in Washington, May 16, 2025. The witnesses include Laurie Buckhout, performing the duties of assistant secretary of defense for cyber policy, and Army Lt. Gen. William J. Hartman, acting commander of U.S. Cyber Command and performing the duties of the director of the National Security Agency and chief of the Central Security Service.

Interactive Experience:

Military Units: Army

 

From team to region — an interactive look at the Army's organization structure and top things to know about America's first service branch.

Read More

Interactive Experience:

Do You Know What to Do When Disaster Strikes?

 

Take this quiz to learn more about floods, tornadoes and hurricanes!

Read More

Interactive Experience:

We Prepare. You Should, Too.

 

Service members train and prepare year-round so when disasters strike, troops are ready to help those in harm's way. Learn how you can prepare, too.

Read More

Interactive Experience:

GI Jargon, Reporting for Duty

 

The military has a language all its own, and you might be fluent without even knowing it. Take this quiz and find out just how much GI Jargon you know!

Read More