United States Uniformed Services Privilege and Identification Card

A United States Uniformed Services Privilege and Identification Card (also known as U.S. military ID, Geneva Conventions Identification Card, or less commonly abbreviated USPIC) is an identity document issued by the United States Department of Defense to identify a person as a member of the Armed Forces or a member's dependent, such as a child or spouse.

[2] Defense personnel that use the CAC include the Selected Reserve and National Guard, United States Department of Defense (DoD) civilian employees, United States Coast Guard (USCG) civilian employees and eligible DoD and USCG contractor personnel.

The CAC also satisfies the requirements for digital signature and data encryption technologies: authentication, integrity and non-repudiation.

The Next Generation USID card incorporates an updated design and security features to deter counterfeiting and fraud and is printed on a plastic cardstock.

Until the CAC was phased in, starting in late 2003, the DD Form 2, in branch-specific variants, served as active duty members' IDs.

A U.S. Army National Guardsman's Geneva Conventions Identification Card from 2001, with social security number redacted.
US Navy Identification Card from the 1960s, as displayed in Pyongyang, North Korea.
A Common Access Card (CAC).
USID Next Generation Conversion
Sample DoD ID Cards