In July 2007, Russian First Deputy Prime Minister Sergei Ivanov declared that if US-controlled missile defense systems were deployed in Poland, then nuclear weapons might be deployed in Kaliningrad.
En xullo de 2007, o viceprimeiro ministro de Rusia Sergéi Ivánov declarou que se os Estados Unidos despregaban un sistema de defensa contra mísiles en Polonia, despregaríanse armas nucleares en Kaliningrado.