Step 1 : Introduction to the question "Where was the Constitution of the United States kept during WWII?"
...Located on the upper level of the National Archives museum, the Rotunda for the Charters of Freedom is the permanent home of the original Declaration of Independence, Constitution of the United States, and Bill of Rights. But what happened to these documents during World War II? As anxiety over a potential Japanese invasion gripped the nation, officials decided to send the documents to an even more secure area for safekeeping. They were put on a train along with the Gettysburg Address and taken to Fort Knox in Kentucky, under the vigilant guard of armed Secret Service officers.