Guns Afloat highlights the exploits of the unique artillery and transportation units assigned to the Mobile Riverine Force (MRF) during the Vietnam War. This book examines in detail the specially designed Artillery Barges and Airmobile Firing Platforms that were developed to overcome the swampy terrain encountered in the Mekong Delta. The book contains several never-before-published photographs provided by veterans, the National Archives and the United States Army Center of Military History. The book begins with a historical overview of riverine artillery in Vietnam, which explains the unique mobility challenges faced by the U.S. Army. Brief unit histories are followed by chapters giving an in-depth look at the artillery barges and air-deployable firing platforms. This book will appeal to any military history enthusiast, scale modeler or veteran.