Another quote from Russo’s book:
On October 6, 1962, thousands of troops were positioned, along with support equipment and planes, prepared to implement military OPLANS being considered by the President. In charge of the operation was Admiral Robert “Denny” Dennison, Commander in Chief of the North Atlantic Fleet (CINCLANT). The plans called for everything from small amphibious landings, to a full-scale invasion by over 18,000 U.S. troops. On October 10, the White House obtained permission from the British government to use the Bahamas as an invasion base camp. D-Day was to be October 20, 1962.134