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The 15 Most Secretive Units in U.S. Military History

Darren October 23, 2025 6 min

10. 23rd Headquarters Special Troops: Ghost Army

10. 595th Signal Brigade: Ghost Army — Image Source: Wikimedia Commons.

During World War II, the 23rd Headquarters Special Troops, known as the “Ghost Army,” conducted deception operations throughout Europe. Utilizing inflatable tanks, fake radio traffic, and sound effects, they misled Nazi forces about the size and location of Allied units. Their creative and secretive tactics remain legendary. Learn more at the Ghost Army Legacy Project.

Written by

Darren

10. 23rd Headquarters Special Troops: Ghost Army

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