That historic agreement — the first to eliminate an entire class of nuclear delivery systems — banned the deployment of ground-based cruise or ballistic missiles with a range of 500 and 5,500 kilometers and required the destruction of all those then in existence. After the collapse of the Soviet Union, the Russian Federation inherited the USSR’s treaty obligations and pledged to uphold the INF along with other U.S.-Soviet arms control agreements. In the view of most observers, the prospect of a nuclear war between the two countries practically vanished as both sides made deep cuts in their atomic stockpiles in accordance with already existing accords and then signed others, including the New START, the Strategic Arms Reduction Treaty of 2010.