The Glassboro Summit Conference represented a pivotal moment in U.S.-Soviet relations during the Cold War. Convened from June 23 to June 25, 1967, this summit was notable for the in-person meeting between U.S. President Lyndon B. Johnson and Soviet Premier Alexei Kosygin. The conference took place in Glassboro, New Jersey, and was set against the backdrop of heightened tensions resulting from the Vietnam War and concerns regarding nuclear proliferation. Kosygin’s visit, following Johnson's invitation, marked a rare opportunity for both leaders to engage directly.

Throughout the three days, discussions were primarily framed around essential global issues such as the Vietnam War, mutual security concerns, and arms control measures. Though both leaders had differing viewpoints, the summit facilitated an environment for dialogue. One notable aspect was the cordial interaction that emerged during the discussions, desiring to reduce animosity and promote understanding despite prevailing ideological divides.

The summit concluded with a joint statement expressing a desire for peaceful coexistence, yet many of the discussions reflected the complexities of the ongoing Cold War. Nevertheless, it underscored a level of communication that, at the time, seemed a step towards potential easing of hostilities, leading to future negotiations, including arms control treaties later in the decade.