Department of Defense

noun

1. the department of the U.S. federal government charged with ensuring that the military capacity of the U.S. is adequate to safeguard the national security. : DOD

Department of Defense

1. A department of the federal executive branch entrusted with formulating military policies and maintaining American military forces. Its top official is the civilian secretary of defense . It is headquartered in the Pentagon .

Example Sentences

In 2010, an internal US Department of Defense memo called Afghanistan “the Saudi Arabia of lithium,” after American geologists discovered the vast extent of the country’s mineral wealth, valued at at least $1 trillion.

From Quartz

He even trained Department of Defense employees on security and counterintelligence.

From Washington Post

The report, titled “The Military, Police, and the Rise of Terrorism in the United States,” cited a Department of Defense report sent to the House and Senate Armed Services Committees last month.

From Washington Post

Department of Defense to resume giving the shots to military personnel after the mandatory vaccination program had been suspended.

From ProPublica

Guests include former Department of Defense officials Chuck Hagel and Michèle Flournoy and Chicago Project on Security and Threats researchers Robert Pape and Paul Poast.

From Freakonomics