Alexei Kosygin
The Six-Day War in the Middle East had the effect of increasing Soviet–American cooperation; to improve relations even further, the United States Government invited Kosygin to a summit with Lyndon B. Johnson, the President of the United States, following his speech to the United Nations.[35] At the summit, which became known as the Glassboro Summit Conference, Johnson and Kosygin failed to reach agreement on limiting anti-ballistic missile systems, but the summit's friendly and even open atmosphere was referred to as the "Spirit of Glassboro".[36] Relations between the two countries improved further when the 1970 Moscow Treaty was signed on 12 August 1970 by Kosygin and Gromyko and Willy Brandt and Walter Scheel who represented West Germany.[37] In 1971, Kosygin gave an extensive interview to the American delegation that included David Rockefeller, presenting his views on US-Soviet relations, environmental protection, arms control and other issues.[38][39]