Modern society depends on satellites in space, and the United States relies on satellites more than any other country. It is from space that much of America’s military advantage is assured. Without the satellites that link our forces together, America’s modern military would cease to function and would risk being overwhelmed. However, U.S. space architecture is more vulnerable to attack than ever. The longer America’s satellites remain undefended, the more likely those systems will be vulnerable to hostile attack. This article addresses a better way to defend these vital systems by advocating a policy of “space dominance,” as opposed to “space superiority.” Space Dominance is the only way that the United States will preserve its status as the most powerful country in the world.