"Of course, this has a reason. At the same time, from our point of view, this [the deployment of missile systems on Kurils] should in no way affect the tendencies in our current bilateral relations with Tokyo regarding a very thorough preparation of [Russian President Vladimir] Putin's upcoming visit to Japan, as well as contacts and talks on peace treaty issues," Peskov told reporters.
The Kuril Islands are the subject of the long-standing territorial dispute between Russia and Japan. Japan lays claims to Kunashir, Iturup, Shikotan islands and the Habomai group of islets. The territorial dispute has prevented Russia and Japan from signing a peace treaty after the World War II.