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Legal Structure of Prohibition of the Use of Force in International Law

Research Project

Project/Area Number 19K01312
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 05030:International law-related
Research InstitutionThe University of Tokyo

Principal Investigator

MORI TADASHI  東京大学, 大学院公共政策学連携研究部・教育部, 教授 (90292747)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords武力行使禁止原則 / 国際連合憲章 / 武力不行使原則 / 国連憲章 / 集団安全保障体制 / 自衛権 / 要請に基づく軍事援助 / 不戦条約
Outline of Research at the Start

現代国際法における武力行使禁止原則については、学説上、厳格な禁止と明確な例外という捉え方が一般的と言ってよい。しかしこうした枠組は各国によって共有されているのだろうか。
本研究の目的は、現代国際法における武力行使禁止原則の法的構造を明らかにすることにし、その成果を国際的に問うことにある。そのため本研究においては、まず戦間期における
戦争違法化の構造を明らかにし、その上で現代国際法上の武力行使禁止原則の法的構造を歴史的なパースペクティブの中に位置づけ、第二次大戦後の国家実行と学説においてそうした構造に関する理解がどのように変化していったのか、あるいは変化しなかったのかを検討する。

Outline of Final Research Achievements

This study examined the legal structure of the principle of the prohibition of the use of force by reviewing the debate in the interwar period, the drafting process of the UN Charter and recent practices. As a result, the following remarks were identified: in the drafting process of the UN Charter, there was a consistent US conception that the use of force compatible with the objectives of the UN could be permitted, but that this would be left to the ex post facto judgement of the Security Council; on the other hand, at the San Francisco Conference, there was an understanding that unilateral use of force, except as stipulated in the Charter, was not permitted; there was no agreement on these differences; and that even in recent practices, the above mentioned two understandings can be found unresolved.

Academic Significance and Societal Importance of the Research Achievements

武力行使禁止原則の法的構造は、学術的にも社会的にも、近年あらためて注目されてきている。同構造に関する本研究は、そうした課題に取り組むものであり、本研究成果は今後の研究について方向性を示すものである。今後、幅広い実行を検討することによって、同構造を明らかにしたい。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021 2020 2019

All Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results) Presentation (2 results) (of which Invited: 2 results) Book (3 results)

  • [Journal Article] 武力行使禁止原則の再検討に向けてーー国連憲章成立過程と2010年代の武力行使――2024

    • Author(s)
      森肇志
    • Journal Title

      法と哲学

      Volume: 20 Pages: 1-22

    • Related Report
      2023 Annual Research Report
  • [Journal Article] 書評〉西嶋美智子著『自衛権の系譜―戦間期の多様化と軌跡』(信山社,2022年)2023

    • Author(s)
      森肇志
    • Journal Title

      国際法研究

      Volume: 12

    • Related Report
      2022 Research-status Report
  • [Journal Article] 国家間のサイバー攻撃をどう規制するか?――国連におけるICTs規制論議の経緯・現状・課題2022

    • Author(s)
      森肇志
    • Journal Title

      まだ、法学を知らない君へ-未来をひらく13講

      Volume: なし Pages: 185-202

    • Related Report
      2022 Research-status Report
  • [Journal Article] Renunciation of War in Japan’s Post World War II Constitution and Self-Defense Forces2021

    • Author(s)
      Tadashi Mori
    • Journal Title

      Encyclopedia of Public International Law in Asia

      Volume: 1 Pages: 272-273

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Japan’s Ability to Exercise Collective Self-Defense2021

    • Author(s)
      Tadashi Mori
    • Journal Title

      Encyclopedia of Public International Law in Asia

      Volume: 1 Pages: 273-274

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Participation in Multinational Forces2021

    • Author(s)
      Tadashi Mori
    • Journal Title

      Encyclopedia of Public International Law in Asia

      Volume: 1 Pages: 275-276

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 武力不行使原則と集団的自衛権―ニカラグア事件(本案)2021

    • Author(s)
      森肇志
    • Journal Title

      国際法判例百選

      Volume: 57 Pages: 220-221

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Book Review: Buryokukoshi-Kinshigensoku no Rekishi to Genjo [The History and Current Status of the Principle of the Prohibition of the Use of Force], by Yoshiro Matsui2021

    • Author(s)
      Tadashi MORI
    • Journal Title

      Japanese Yearbook of International Law

      Volume: 63 Pages: 303-308

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 紹介・松井芳郎著『武力行使禁止原則の歴史と現状』2020

    • Author(s)
      森肇志
    • Journal Title

      国際法外交雑誌

      Volume: 119巻1号 Pages: 153-159

    • Related Report
      2020 Research-status Report
  • [Journal Article] 集団的自衛権概念の明確化-援用事例とニカラグア事件判決2019

    • Author(s)
      森肇志
    • Journal Title

      国際法のダイナミズム

      Volume: 図書 Pages: 703-729

    • Related Report
      2019 Research-status Report
  • [Journal Article] Decisions in Japan to Use Military Force or Participate in Multinational Peacekeeping Operations2019

    • Author(s)
      Tadashi MORI
    • Journal Title

      Oxford Handbook of Comparative Foreign Relations Law

      Volume: 図書 Pages: 829-842

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 武力行使に対する各国の評価の意義――第11回国連総会緊急特別会期における議論構造――2023

    • Author(s)
      森肇志
    • Organizer
      国際法学会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 武力行使の法的根拠の評価2022

    • Author(s)
      森肇志
    • Organizer
      日本学術会議
    • Related Report
      2022 Research-status Report
    • Invited
  • [Book] 自衛権の基層 増補新装版2023

    • Author(s)
      森 肇志
    • Total Pages
      368
    • Publisher
      東京大学出版会
    • ISBN
      9784130312042
    • Related Report
      2023 Annual Research Report
  • [Book] 防衛実務国際法2021

    • Author(s)
      黒﨑 将広、坂元 茂樹、西村 弓、石垣 友明、森 肇志、真山 全、酒井 啓亘
    • Total Pages
      844
    • Publisher
      弘文堂
    • ISBN
      9784335356926
    • Related Report
      2020 Research-status Report
  • [Book] 分野別国際条約ハンドブック2020

    • Author(s)
      森肇志他
    • Total Pages
      387
    • Publisher
      有斐閣
    • ISBN
      9784641046870
    • Related Report
      2020 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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