Richard Nixon endorsed the use of a back channel between Henry Kissinger, as his personal representative, and Anatoly Dobrynin, as the intermediary to the Kremlin. Over time, the relationship came to be known as “the Channel” and was the primary back channel in U.S.-Soviet relations during the Nixon administration. Long before Nixon became president, the executive branch had utilized private correspondence with foreign leaders, presidential emissaries, confidential channels, and other types of communication beyond the purview of the normal foreign policy bureaucracy. Despite the earlier precedents, the Dobrynin-Kissinger channel was novel in its breadth, its sweeping exclusion of the State Department, and most significantly for its central role in shaping détente. Back-channel diplomacy with the Soviets was not dominant until 1971, when the Channel became “operational,” as Kissinger later wrote, to cover the Berlin negotiations, break an impasse in SALT, and begin tentative planning for a summit meeting.