Presidential Unit
Citation
Authorized by Executive Order 9050 on February 6, 1942, this is awarded by
the Secretary of the Navy in the name of the President, to any ship, aircraft,
or naval unit, or any Marine Corps aircraft, detachment, or higher unit for
outstanding performance in action against an armed enemy of the United States
on or after December 7, 1941. Although created as a combat award, there have
been two non-combat awards authorized. To the USS NAUTILUS (SSN-571) for the
first cruise of a nuclear submarine, July 22 to August 5, 1958; and to the USS
TRITON (SSN-586) for the submerged circumnavigation of the world, February 16
to May 10, 1960.