Second, the hindrance to the Japan-Russo negotiation from the United States has been weak this time, and Abe seems to be insensitive to it. Recall the Japan-Soviet negotiation in the mid-1950s under Prime Minister Ichiro Hatoyama. The necessity to improve the relationship with the Soviet Union as it vetoed Japan’s membership in the United Nations mainly drove the government of Japan. Then U.S. government intervened strongly against it.

Tokyo wanted to realize the return of four islands and conclude a Peace Treaty with Moscow. But the State Department was alarmed. Drawing a border between Japan and the Soviet Union in the treaty meant that Japan admitted Russian sovereignty over the rest of Kuril Islands and South Sakhalin, which the United States never admitted. At the height of Cold War, any gain for Moscow was regarded as a loss for Washington. Americans were worried about the domino effects on the issues such as the status of Taiwan and the approval of the People’s Republic of China. The State Department was also nervous if the solution of the Northern Territories may ignite an irredentism in Japan over Okinawa and Ogasawara Islands.

In the process of the negotiation, Foreign Minister Mamoru Shigemitsu thought that the GOJ should compromise with the return of two islands (Shikotan and Habomais), and had better conclude a peace treaty. In the summer of 1956, Secretary of State John Foster Dulles met Shigemitsu in London and delivered a warning known as “intimidation by Dulles.” He said that the United States will forever stay in Okinawa if the Japanese government admits the Soviet Union full sovereignty over the (rest of) Kuril Islands. On September 9, Dulles told Shigemitsu that the U.S. government considered the four islands, not the two, should be returned to Japan. It was not the advice for the sake of Japan. The State Department reached the conclusion after being convinced that Etorofu/Itrup and Kunashiri/Kunashir were too important for the Soviet Union to give up from the military points of views. In effect, it was the advice to prohibit Japan’s concession.

Prime Minister Hatoyama finally visited Moscow and signed a Japan-Soviet Joint Declaration on October 19, 1956. As a result, Japan and the Soviet Union resumed diplomatic relations. Moscow agreed to transfer Shikotan and Habomais to Japan after concluding the Peace Treaty. Nothing was mentioned about Etorofu/Itrup and Kunashiri/Kunashir. No borderline was drawn between the two countries and two islands of Shikotan and Habomais have never been returned to Japan because the treaty has not ever concluded.

The relationship between the United States and Russia has been deteriorated for the last decade, especially after Russia’s annexation of Crimea in 2014.The Obama administration is not very happy with Abe’s initiative to make a big deal with Putin. But the U.S. administration today is not so serious as to intimidate Japan. The Cold War is over, and current threat from Russia is no more vital.

For his part, Abe does not seem to care much about Washington’s uneasiness. The nature of so called “New Cold War” is bilateral, not global. Japan does not really see material loss if it neglects American anxiety.

Personal character of Abe also facilitates a deviation from the United States. He emphasizes the importance of Japan-U.S. alliance in the context of dealing the threat from China and North Korea. But Abe is fundamentally a nationalist. He visited the Yasukuni Shrine on December 26, 2013, causing to lose face of Vice President Joe Biden. As for the matters related to Russia, Abe has been surprisingly stubborn. When the U.S. president was trying to launch a military strike on Syria in order to punish its use of chemical weapons in the late summer of 2013, he avoided committing himself to support Obama, tacitly siding with Putin. Abe’s persistence in the resolution of the Northern Territories issues was basically intact even when Russia annexed Crimea. Although the United States and the EU posed sanctions on Russia and urged Japan to follow, the Japanese government responded only nominally.