HeinOnline’s newest database, Military & Government, delves into the history, administration, and evolution of the most powerful military in the world, one that is controlled, not by military leaders, but rather by civilians. The United States Military is comprised of six branches: the Army, which is the oldest of the six branches, the Marine Corps, the Navy, Air Force, Coast Guard, and Space Force, the newest of the service branches. Although the U.S Constitution names the President as Commander-in-Chief of the Armed Forces and gives Congress the power to declare war, the National Security Act of 1947 set the stage for the current organization of the military. To help researchers understand the complexities of the administration of the Armed Forces and get a glimpse into the rich history of the American military, HeinOnline has created its Military & Government database, a collection of government documents, books, periodicals, and scholarly articles that examines the past, present, and future of this strong fighting power.