Seal of the United States Marine Corps.  It is defined in Executive Order 10538 as:

Standing upon the western hemisphere of the terrestrial globe containing the lines of latitude and topographical outlines of North, Central, and South America, an American bald eagle with wings displayed horizontally and inverted holding in his beak a scroll inscribed with the motto SEMPER FIDELIS, all bronze. Behind the western hemisphere a foul anchor bend sinister-wise with stock, arms, and flukes in slight perspective, all bronze, on a scarlet background and within a dark blue band edged in gold circumscribed by a gold rope rim and inscribed DEPARTMENT OF THE NAVY • UNITED STATES MARINE CORPS in gold letters. The central device of the seal is the emblem of the United States Marine Corps.
For more information, see here.
Extracted from PDF version of 2006 NGA GEOINT Basic Doctrine (direct PDF URL [1]).
U.S. Government