Abahinga bavuga ko mu gihe Amerika n'Uburusiya vyoba bivuye mu masezerano ya INF - yapfunditswe hagati ya perezida wa Amerika Ronald Reagan na Mikhail Gorbachev w'Uburusiya mu 1987 - kwosa n'ugusubira inyuma na cane cane mu gisata co kugenzura ibigwanisho.
