Sentinel Systems Command

Worn from:
15 January 1969 - 31 October 1973.

Re-designated:
Ballistic Missile Defense Organization United States Army.
Worn from:
31 October 1973 - 30 December 1985.

Re-designated:
Strategic Defense Command United States Army.
Worn from:
30 December 1985 - Current.

The colors scarlet and yellow traditionally are associated
with artillery, and light blue represents the sky. The sentinel
denotes readiness and alertness, representing the organization as
guardian of the nation's skies. The headquarters for the unit is at
Redstone Arsenal, Alabama.