 Complete the following phrase:  Searchlights were installed on most naval capital ships from the late 19th century through WWII, both for tracking small, close-in targets such as torpedo boats, and for engaging enemy units in nighttime gun battles. The Imperial Japanese Navy especially was known for its intensive development of nighttime naval combat tactics and extensive training. The War in the Pacific saw a number of nocturnal engagements fought by searchlight, particularly the 