 Complete the following phrase:  The Harbor Defenses of the Delaware were previously Forts Delaware, DuPont, and Mott, all near Delaware City. They were sited well north in the Delaware estuary due to the short range of their guns. The long-range guns of Fort Saulsbury allowed an enemy to be engaged much further south. Fort Saulsbury consisted of Batteries Hall and Haslet, each with two 12-inch guns and a large ammunition and fire control bunker constructed of reinforced concrete and earth. Battery Hall was named for David Hall, a Revolutionary War officer and former Governor of Delaware. Battery Haslet was named for John Haslet, also a Revolutionary War officer, killed at the 