This book offers a systematic guide to the allocation of American taxpayer dollars used to provide for the common defense. With engaging and illustrative examples like the narrative of a helicopter purchase, it reveals an unexpectedly chaotic political process that produces a conversely stable aggregate defense budget. The book explores specific attempts to control or influence these turbulent funding outcomes as Congress reviews the Presidential budget request. Containing data and sources largely unavailable to researchers without access to the Department of Defense, the book should be of interest to anyone looking for a direct, current, and methodical analysis of defense budget outcomes that preserves the informal and nuanced mechanics of a political and complicated process.