Nobumasa Akiyama is dean of the School of International and Public Policy at Hitotsubashi University in Tokyo and author of "The Essentials of International Politics." He is also a member of the International Group of Eminent Persons for a World without Nuclear Weapons.
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An intercontinental ballistic missile launches in North Korea in this image released in July: Nuclear weapons should be governed by international law. (KCNA via Reuters)
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