VIRTUAL --On September 2, 1945, with the signing of the Instrument of Surrender aboard the US Navy battleship the USS Missouri, World War II was officially over. To mark this momentous event, the Greatest Generation Day Committee virtually hosted veteran journalist Chris Wallace to discuss his book, Countdown 1945.Countdown 1945 delivers a behind-the-scenes account of the 116 days leading to the bombing on Hiroshima on August 6, 1945.