This book argues that America's newest branch of the armed forces, the United States Space Force, will soon play a key strategic role in American foreign policy, military and economic expansion, and technological innovation. Written by a leading expert on and member of the Space Force, the book offers an introduction to the Space Force, explains the urgent need for it, and walks readers through what exactly the Space Force is and is not. Drawing on dozens of interviews with high-ranking members of the armed forces, the author claims that, in the future, space will be the geopolitical center of world politics, as such countries as the U.S., Russia, and China jockey for control of it. America must therefore set aside partisan politics to make space a top priority, as a failure to do so will leave the U.S. and its citizens in a dangerous and vulnerable position on the world stage.