It is not widely known that some Japanese naval guns which had been removed from the super-battleship IJN Musashi prior to its final sortie were allocated to the AA defense of Manila and Corregidor. Lacking artillery spotters, the Japanese utilized these guns indiscriminately as the US forces approached, causing significant damage in the residential areas both to the north across the Pasig River, and to the south at Ermita and Harrison Park.  (Image courtesy of the John Tewell Collection.)