On the morning of the sixth day of the war, President Johnson summoned Helms to the White House Situation Room. Soviet Premier Alexei Kosygin had called to threaten military intervention if the war continued. Defense Secretary Robert S. McNamara suggested that the Sixth Fleet be sent east, from the mid Mediterranean to the Levant. Johnson agreed. Helms remembered the "visceral physical reaction" to the strategic tension, similar to the emotions of the 1962 Cuban Missile Crisis. "It was the world's good fortune that hostilities on the Golan Heights ended before the day was out," wrote Helms later.