On March 3, 2006 Russia and Ukraine signed an agreement that would allow to keep R-36M2/SS-18 missiles in service. These missiles were manufactured at the Yuzhmash plant in Dnepropetrovsk in the late 1980s-early 1990s. According to newly available archival documents, 58 of these missiles were deployed in 1991 (this number has been mentioned before, but now we have firm evidence that supports it). The Rocket Forces plan to keep R-36M2 in service until 2014-2016 (but probably not all 58). The older version of the missile, R-36MUTTH, will be retired earlier - in 2007-2009.