The inauguration of the first Afghan President, Saddam Hussein and weapons of mass destruction, US declaring war, and Pearl Harbor. What do all of these things have in common? All of these events occurred on December 7th. It was on December 7th, 1941 that 353 Japanese bombers attacked the United States naval base at Pearl Harbor, destroying 19 ships, 188 aircraft and killing over 2,000 Americans. It was this act that drove the United States into World War II. In 2002, Saddam Hussein made his formal statement denying any possession of weapons of mass destruction while just two years later, in 2004, Hamid Karzai was elected the first President of Afghanistan. December 7, 1917 was also an important date because it was on this day when America declared war on the Austria-Hungary Empire, which marked the US entrance into the First World War. Watch the This Day in History video to find out more.