The foreign Ministry said that the goal of negotiations between Russia and Japan

The goal of Russia's negotiations with Japan - basic document wider peace agreement, said the official representative of Russian foreign Ministry Maria Zakharova.

"We see the negotiation of the conclusion of such a fundamental document, which would be wider than just peace. And referring to the Treaty of peace, friendship and good neighborliness, cooperation, which would be durable, modern legal basis for the derivation of relations between our countries to a qualitatively new level," Zakharova said at the briefing.

According to her, no demarcation or delimitation of boundaries have nothing to negotiate with Japan on a peace Treaty.

"In Tokyo we always assumed the inviolability of our borders, stressed the need for the recognition by Japan of the outcome of the Second world war in full, including the full membership of the southern Kuril Islands of the Russian Federation. There are no changes. Moreover, any changes can not be", - she noted.

Earlier, Deputy foreign Minister Igor Morgulov said that the adoption of the amendments to the Constitution of the Russian Federation do not affect the joint economic activity with Japan on the Kuril Islands.

Relations between Russia and Japan for many years overshadows the absence of a peace Treaty. Japan claims Kunashir, Shikotan, Iturup and Habomai, referring to bilateral Treatise on trade and borders of 1855. In 1956 the USSR and Japan signed a Joint Declaration in which Moscow has agreed to consider the possibility of transfer of Japan of the Habomai and Shikotan after the conclusion of a peace Treaty, and the fate of Kunashir and Iturup are not affected. The USSR hoped that the Joint Declaration will put an end to the dispute, Japan believed the document only part of the solution, not abandoning claims to all the Islands.

Later the negotiations failed, the peace Treaty after the Second world war and was not signed. There is a view that serious opposition arose from the United States, which threatened that if Japan would agree to the transfer of only two of the four Islands, it will affect the process of the return of Okinawa under Japanese sovereignty (the Agreement on the return of Okinawa to Japan entered into force in 1972). Moscow's position is that the Islands became part of the Soviet Union at the end of the Second world war and the Russian sovereignty over them cannot be questioned.

In 2018 in Singapore at the end of the summit with Russian President Vladimir Putin, Prime Minister of Japan Shinzo Abe said that the parties agreed to accelerate negotiations on a peace Treaty on the basis of Joint Soviet-Japanese Declaration of 1956. This is a serious concession on the part of Japan, because until now, its official position was to demand the return of the four Islands and only after that - the conclusion of a peace Treaty.