HistoryNet World US History Online HistoryNet contains daily features, photo galleries and over , articles originally published in our various magazines. World War II Causes and Timeline HISTORY HISTORY World War II was the biggest and deadliest war in history, involving than countries Sparked by the Nazi invasion of Poland, the war dragged on for six bloody years until the Allies World War I HISTORY World War I began in , after the assassination of Archduke Franz Ferdinand, and lasted until During the conflict, Germany, Austria Hungary, Bulgaria and the Ottoman Empire the Central World Military Spending Global Issues Back to top US Military Spending The United States has unquestionably been the most formidable military power in recent years Its spending levels, as noted earlier, is the principle determinant of world military spending and is therefore worth looking at further. The United States Probably Has More Foreign Military Bases With the US military having withdrawn many of its forces from Iraq and Afghanistan, most Americans would be forgiven for being unaware that hundreds of US bases and hundreds of thousands of US World War I casualties The total number of military and civilian casualties in World War I was about million estimates range from to million deaths and about million wounded military personnel, ranking it among the deadliest conflicts in human history. The total number of deaths includes from to million military personnel.The civilian death toll was about million, including about million due Our History American Red Cross History Answering the Call Come Visit Our New Exhibit Commemorating World War I at National Headquarters World War I was a time of phenomenal growth for the Red Cross ultimately helping to define and create the organization we know today. South African Military History Society Journal page Military History Journal incorporating Museum Review Articles published over the last years Guidelines for Authors The Military History Journal incorporating the Museum Review , established in , is published by the Ditsong previously South African National Museum Of Military History in association with the South African Military History Society, bi annually, in June and December. WORLDWAR World War I The Great War The United States World War One Centennial Commission The Library of Congress U.S National Archives U.K National Archives Organization of American Historians About History World War II World War II often abbreviated to WWII or WW , also known as the Second World War, was a global war that lasted from to The vast majority of the world s countries including all the great powers eventually formed two opposing military alliances the Allies and the Axis.A state of total war emerged, directly involving than million people from over countries.