The Judges' Book Volume 3 Article 14 2019 International Law: Explaining International Acts Chimène I. Keitner Follow this and additional works at: https://repository.uchastings.edu/judgesbook Part of the International Law Commons, and the Judges Commons Recommended Citation Keitner, Chimène I. (2019) "International Law: Explaining International Acts," The Judges' Book: Vol. 3 , Article 14. Available at: https://repository.uchastings.edu/judgesbook/vol3/iss1/14 This Article is brought to you for free and open access by UC Hastings Scholarship Repository. It has been accepted for inclusion in The udJ ges' Book by an authorized editor of UC Hastings Scholarship Repository. For more information, please contact
[email protected]. 2019] The Judges’ Book 87 International Law: Explaining International Acts1 Chimène I. Keitner In international law as in domestic law, the why of State action matters, not just the what of State action. The “culture of justification” that exists at the international level includes an expectation that States will articulate the legal and policy bases for their actions, particularly when such actions depart from accepted norms of State behavior.2 In a variety of contexts, States are expected—and seek—to explain their international acts. Although deliberative processes that lead to international acts may not be judicially reviewable to the same extent as those that lead to purely domestic acts, the push for transparency among domestic constituencies, as well as other oversight mechanisms, create ex ante incentives for integrity in decision-making processes and rationales in the conduct of foreign affairs. In addition, ex post explanations of international acts may themselves carry legal significance as expressions of a State’s opinio juris, or sense of legal obligation.