Gorbachev wanted to leave Afghanistan at this point, as it had turned into an unsuccessful effort that was a burden on the Russian economy. Little was accomplished at this summit, as Reagan was unwilling to abandon SDI. However; Because of the free nature with which they spoke, their personal positions on nuclear weapons emerged. As it turned out, they agreed in their beliefs regarding nuclear weapons; they wanted to eliminate them (Cannon). Reagan had made it clear that he would not change his position on SDI and, therefore, Gorbachev let it go, as he believed there were more important things at hand. The success of previous summits motivated the two sides to negotiate a treaty, and the INF Treaty was signed in December 1987, during Gorbachev's visit to Washington (Cannon). This treaty represented a huge step forward, since by removing medium-range missiles from Europe, it was the first treaty to truly reduce the nuclear arsenal