“ Qualifying active-duty service includes service conducted, during this period, on the islands of Grenada, Carriacou, Green Hog, and those islands adjacent to Grenada in the Atlantic Seaboard where such service was in direct support of the military operations in Grenada. Qualifying active-duty service during this period also includes service conducted in the air space above Grenada, in the adjacent seas where operations were conducted, and at the Grantly Adams International Airport in Barbados. ”