In the present crisis, it has become imperative for Americans to learn of the forces that shape the outcome of battles, begins this intriguing guide, published as the nation prepared to enter World War II. Combining history, science, and lore, this illustrated guide for civilians explains the particulars of rifles, artillery, grenades, and tanks. Far from being a dry technical manual, anecdotes abound and there are many colorful turns of phrase here: A pistol is described as "a faithful dog ready to enforce the dictates of its master."