Awwal 06, 1432 H/Feb 09, 2011, SPA -- Russia will send more weapons to its islands in north Pacific, President Dmitry Medvedev announced Wednesday _ a mere two days after Japan again demanded that Russia return several islands it has held since the end of World War II. The disagreement over the southern Kuril islands, known in Japan as the Northern Territories, has long been a sticking point between the two countries. It also has kept them from signing a formal peace treaty ending their World War II hostilities. AP cited Medvedev as telling Cabinet ministers that Russia must strengthen its presence there and that the new weapons will protect the islands as an «inalienable part of Russia.» Several hours later, the state news agency ITAR-Tass cited a Defense Ministry source as saying that some of the four Mistral assault ships that Russia has contracted to buy from France would be deployed in the Pacific Fleet, in part to defend the southern Kurils. The purchase of the Mistrals, which can carry up to 16 helicopters and dozens of armored vehicles each, was signed in January. The deal sparked concern in the United States, in the Black Sea nation of Georgia and in the former Soviet Baltic nations who are worried about Russia's sway over its neighbors. On Wednesday, he reaffirmed that determination, saying new weapons will be sent to «to guarantee the security of these islands, which are an integral part of the Russian Federation.» The Russian president also said Wednesday the government may boost its funding of social and economic development of the sparsely populated islands, and suggested tourism possibilities could be developed.