One of the little-known details of the Cuban Missile Crisis is the international magnitude of the Soviet preparations for war. As I was returning from Korea in August 1962 via the USNS Sultan, we were shadowed by a Soviet submarine from the moment we left Pearl Harbor – I don't recall the date -- until we entered San Francisco Bay early in the morning on 4 September 1962. Initially we saw only the Soviet sub’s periscope, but as we drew closer to the U.S., she would surface to charge her batteries and run along our port side maybe 1000 yards distant. Eventually we were waving to one another, the sub's crew on deck for a breath of fresh air and those of us going home aboard the Sultan behaving as if we were on a sea cruise. Years later, when the entire timeline of the crisis was declassified – when it became clear the Soviets were installing the missiles in August -- I realized why that sub was there. Had the proverbial balloon gone up, they'd have torpedoed us -- somewhat more than 4,000 trained and service-seasoned officers and enlisted personnel aboard an unarmed (and therefore utterly defenseless) WWII troop transport -- which would no doubt have killed us all and given them a pivotal (and utterly demoralizing) naval victory.