In a historic moment for Cold War diplomacy, President Richard M. Nixon and Soviet Premier Leonid Brezhnev came together in Moscow on May 26, 1972, to sign the Anti-Ballistic Missile (ABM) Treaty. This landmark agreement marked a significant step in strategic arms limitation, as both superpowers grappled with the escalating threat of nuclear confrontation. The treaty sought to curb the arms race by limiting the deployment of anti-ballistic missile systems, thereby reinforcing the principle of mutually assured destruction, a doctrine that both sides relied upon to deter nuclear warfare. At the heart of the treaty was the recognition that an effective missile defense could potentially undermine the balance of power, leading to an arms buildup threatening global stability. The ABM Treaty limited both the U.S. and the Soviet Union to a maximum of two ABM sites, later reduced to one, symbolizing a mutual commitment to de-escalate tensions. Nixon's visit to Moscow and the signing of the treaty reflected a thawing relationship between the superpowers, culminating in a series of agreements aimed at curbing the nuclear arms race. However, the ABM Treaty faced challenges in the subsequent decades, as technological advancements and changing geopolitical dynamics shifted priorities. By 2002, under President George W. Bush, the United States unilaterally withdrew from the agreement, citing the need to develop missile defense systems to counter threats from rogue states. The legacy of the ABM Treaty endures, serving as a reminder of the delicate balance of power during the Cold War and the ongoing challenges of arms control in an era of shifting global alliances and emerging threats. As nations navigate the complexities of modern security, the lessons learned from Nixon and Brezhnev's negotiations continue to resonate.