Variety of titles of military survival guides includes navigation, locating food and water, how to start a fire, and other key survival skills every soldier, hiker, and hunter should know. Measuring 5 1/2" X 8 1/2", the FM 21-76 Army field manuals are perfectly sized to fit in your ruck sack or Bug Out Bag. The U.S. Army Manuals Provides Step By Step Instruction Alongside Illustrations For Surviving Measuring 5 1/2" X 8 1/2", The Soft Cover Paperback Book Fits Perfectly Sized To Into Your Ruck Or Bug Out Bag