This document, Terrain Handbook 41, is a classified military intelligence report prepared by the Allied Geographical Section (AGS) of the Southwest Pacific Area (SWPA), operating under the command of General Douglas MacArthur. Dated November 21, 1944, this handbook is one of the most vital intelligence reports compiled for the liberation of the Philippines, as it focuses on the capital city of Manila and the surrounding area in Central Luzon.
Terrain handbook 41: Manila (Philippine series)
