From the very beginning, the Soviets' operation entailed elaborate denial and deception, known as "maskirovka". All the planning and preparation for transporting and deploying the missiles were carried out in the utmost secrecy, with only a very few told the exact nature of the mission. Even the troops detailed for the mission were given misdirection by being told that they were headed for a cold region and being outfitted with ski boots, fleece-lined parkas, and other winter equipment. The Soviet codename was Operation Anadyr. The Anadyr River flows into the Bering Sea, and Anadyr is also the capital of Chukotsky District and a bomber base in the far eastern region. All the measures were meant to conceal the program from both internal and external audiences.Specialists in missile construction under the guise of "machine operators," "irrigation specialists," and "agricultural specialists" arrived in July. A total of 43,000 foreign troops would ultimately be brought in. Chief Marshal of Artillery Sergei Biryuzov, Head of the Soviet Rocket Forces, led a survey team that visited Cuba. He told Khrushchev that the missiles would be concealed and camouflaged by palm trees.The Cuban leadership was further upset when in September, the US Congress approved Joint Resolution 230, which expressed Congress's resolve to prevent the creation of an externally-supported military establishment. On the same day, the US announced a major military exercise in the Caribbean, PHIBRIGLEX-62, which Cuba denounced as a deliberate provocation and proof that the US planned to invade Cuba.The Soviet leadership believed, based on its perception of Kennedy's lack of confidence during the Bay of Pigs Invasion, that he would avoid confrontation and accept the missiles as a fait accompli. On September 11, the Soviet Union publicly warned that a US attack on Cuba or on Soviet ships that were carrying supplies to the island would mean war. The Soviets continued the Maskirovka program to conceal their actions in Cuba. They repeatedly denied that the weapons being brought into Cuba were offensive in nature. On September 7, Soviet Ambassador to the United States Anatoly Dobrynin assured United States Ambassador to the United Nations Adlai Stevenson that the Soviet Union was supplying only defensive weapons to Cuba. On September 11, the Telegrafnoe Agentstvo Sovetskogo Soyuza (Soviet News Agency TASS) announced that the Soviet Union had no need or intention to introduce offensive nuclear missiles into Cuba. On October 13, Dobrynin was questioned by former Undersecretary of State Chester Bowles about whether the Soviets planned to put offensive weapons in Cuba. He denied any such plans. On October 17, Soviet embassy official Georgy Bolshakov brought President Kennedy a personal message from Khrushchev reassuring him that "under no circumstances would surface-to-surface missiles be sent to Cuba."As early as August 1962, the US suspected the Soviets of building missile facilities in Cuba. During that month, its intelligence services gathered information about sightings by ground observers of Russian-built MiG-21 fighters and Il-28 light bombers. U-2 spyplanes found S-75 Dvina (NATO designation SA-2) surface-to-air missile sites at eight different locations. CIA director John A. McCone was suspicious. Sending antiaircraft missiles into Cuba, he reasoned, "made sense only if Moscow intended to use them to shield a base for ballistic missiles aimed at the United States". On August 10, he wrote a memo to Kennedy in which he guessed that the Soviets were preparing to introduce ballistic missiles into Cuba.With important Congressional elections scheduled for November, the crisis became enmeshed in American politics. On August 31, Senator Kenneth Keating (R-New York) warned on the Senate floor that the Soviet Union was "in all probability" constructing a missile base in Cuba. He charged the Kennedy administration with covering up a major threat to the US, thereby starting the

Question: What was the name of the Soviet Ambassador?
Answer: Anatoly Dobrynin