In 1986, Gorbachev had proposed banning all ballistic missiles, but Reagan wanted to continue research on the Strategic Defense Initiative (SDI), which involved the militarization of outer space.
I 1986 havde Gorbatjov foreslået, at alle ballistiske missiler skulle forbydes, men Reagan ønskede at fortsætte forskningen i det strategiske forsvarsinitiativ, som indebar militarisering af rummet.