The majority of black guardsmen in general service served ashore under the captains of the ports, local district commanders, or at headquarters establishments. Men in these assignments included hundreds in security and labor details, but more and more served as yeomen, radio operators, storekeepers, and the like. Other Negroes were assigned to local Coast Guard stations, and a second all-black station was organized during the war at Tiana Beach, New York. Still others participated in the Coast Guard's widespread beach patrol (p. 118) operations. Organized in 1942 as outposts and lookouts against possible enemy infiltration of the nation's extensive coastlines, the patrols employed more than 11 percent of all the Coast Guard's enlisted men. This large group included a number of horse and dog patrols employing only black guardsmen.[4-53] In all, some 2,400 black Coast Guardsmen served in the shore establishment. [Footnote 4-53: USCG Historical Section, The Coast Guard at War, 18:1-10, 36.] [Illustration: SHORE LEAVE IN SCOTLAND. (_The distinctive uniform of the Coast Guard steward is shown_.)] The assignment of so many Negroes to shore duties created potential problems for the manpower planners, who were under orders to rotate sea and shore assignments periodically.[4-54] Given the many black general duty seamen denied sea duty because of the Coast Guard's segregation policy but promoted into the more desirable shore-based jobs to the detriment of whites waiting for rotation to such assignments, the possibility of serious racial trouble was obvious. [Footnote 4-54: USCG Pers Bull 44-42, 25 Jun 42, sub: Relief of Personnel Assigned to Seagoing Units, USCG Cen Files 61A701.]