The GBU-28 was originally produced by an arsenal located on the bank of what river?
GBU-28: The GBU-28 is a 5,000-pound (2,268 kg) laser-guided "bunker busting" bomb produced originally by the Watervliet Arsenal, Watervliet, New York. Watervliet Arsenal: The Watervliet Arsenal is an arsenal of the United States Army located in Watervliet, New York, on the west bank of the Hudson River.
Hudson River