"The USSR and the United States undertake for ten years not to exercise their existing right of withdrawal from the ABM Treaty, which is of unlimited duration, and during that period strictly to observe all its provisions. The testing in space of all space components of missile defense is prohibited, except research and testing conducted in laboratories. Within the first five years of the ten-year period (and thus through 1991), the strategic offensive arms of the two sides shall be reduced by 50 percent. During the following five years of that period, the remaining 50 percent of the two sides strategic offensive arms shall be reduced. Thus by the end of 1996, the strategic offensive arms of the USSR and the United States will have been totally eliminated."