AdvertisementWhat Trump's Threat To End A U.S.-Russia Nuclear Arms Treaty Means For PutinOctober 22, 2018Lucian KimfacebookEmailPresident Ronald Reagan (right) and Soviet leader Mikhail Gorbachev exchange pens during the Intermediate Range Nuclear Forces Treaty signing ceremony in the White House on Dec. 8, 1987. Gorbachev's translator Pavel Palazhchenko stands in the middle. (AP)