The Glassboro Summit Conference was the 23–25 June 1967 meeting of the heads of government of the United States and the Soviet Union (President Lyndon B. Johnson and Premier Alexei Kosygin, respectively) for the purpose of discussing Soviet–US relations.

On the 5th of June, 1967, the Six-Day War began between Israel and the neighboring states of Egypt, Syria, and Jordan. This military conflict led to an increase in Soviet-US diplomatic cooperation; some people hoped this contact could continue to help the US solve the Vietnam war and other firs-priority multinational problems.

The two world leaders discussed several topical subjects, including such important issues as the crisis on the Middle East and the arms competition between the US and the Soviet Union. Johnson and Kosygin also discussed a peace settlement regarding Vietnam by literally dividing the country in half, part communist and part capitalist. Kosygin stated that he was in contact with the Prime Minister of North Vietnam about putting an end to the war. Johnson was worried that the North Vietnamese would try to send their troops into South Vietnam if the United States stopped bombing them.

After three days of meetings and discussions, everything was said and done, but the two world leaders failed to come to any important settlement or decision. Anyway, the amicable and friendly atmosphere of the summit was called the "Spirit of Glassboro" and had a notable impact on Soviet–US relations, which became noticeably better after the event.

More Info: encyclopedia.thefreedictionary.com