Memorandum from JCS Chairman Maxwell Taylor to the Secretary of Defense, 'Deployment of POLARIS Submarines to the Mediterranean'

Consistent with the concerns about target coverage, the plan for Polaris patrols required the presence of at least one submarine in the Mediterranean. The overlapping patrols would begin when the U.S.S. Sam Houston entered the Mediterranean on March 28, followed by the U.S.S. John Marshall on April 10, and the U.S.S. Ethan Allen on 1 June. The Sam Houston could make a port call in Turkey, but the stopover had to occur when another submarine was in the Mediterranean. Taylor recommended the port of Glock as the site of a two-day visit, one day for a visit by officials and the second for a “daylight indoctrination cruise by designated observers.” The latter would be barred from sensitive “spaces” used for communications and nuclear propulsion.