In October and November 1940, German–Soviet Axis talks occurred concerning the Soviet Union's potential entry as a fourth Axis Power in World War II. The negotiations, which occurred during the era of the Molotov–Ribbentrop Pact, included a two-day Berlin conference between Soviet Foreign Minister Vyacheslav Molotov, Adolf Hitler and German Foreign Minister Joachim von Ribbentrop, followed by both countries trading written proposed agreements. After two days of negotiations from 12 to 14 November 1940, Germany presented the Soviets with a draft written Axis pact agreement defining the world spheres of influence of the four proposed Axis powers. Hitler, Ribbentrop and Molotov tried to set German and Soviet spheres of influence; Hitler encouraged Molotov to look south to Iran and eventually India while preserving German access to Finland's resources, and to remove Soviet influence in the Balkans. Molotov remained firm, seeking to remove German troops from Finland and gain a warm water port in the Balkans. Soviet foreign policy calculations were predicated by the idea that the war would be a long-term struggle and therefore German claims that Britain would be defeated swiftly were treated with skepticism. In addition, Stalin sought to remain influential in Bulgaria and Yugoslavia. These factors resulted in Molotov taking a firm line. According to a study by Alexander Nekrich, on 25 November 1940, the Soviets presented a Stalin-drafted written counterproposal where they would accept the four power pact, but it included Soviet rights to Bulgaria and a world sphere of influence centered on the area around Iraq and Iran. Germany did not respond, leaving the negotiations unresolved. Regarding the counterproposal, Hitler remarked to his top military chiefs that Stalin "demands more and more", "he's a cold-blooded blackmailer" and that "a German victory has become unbearable for Russia" so that "she must be brought to her knees as soon as possible." Germany broke the Molotov–Ribbentrop Pact in June 1941 by invading the Soviet Union.(thus as well executing the ideological goal of Lebensraum).