 By August 25, dozens of vessels at the Norfolk and Newport News shipyards began to evacuate or prepare to weather the storm, including the carriers "Enterprise", "Dwight D. Eisenhower", "Harry S. Truman", "Theodore Roosevelt", and the construction site of the "Gerald R. Ford".The United States Navy ordered ships to halt their operations and clear the warning zone.Fort Monroe Army base was evacuated on August 26; Langley Air Force Base followed suit the next day, save essential personnel.