大下講師、国際協力機構（JICA）課題別研修「国際公法（海洋法と国際紛争の平和的解決）」にて「General Introduction to the Law of the Sea」及び「Islands and Baselines」を外交官向けに英語で講義（於：JICA東京）
Lecturer Oshita delivers lectures entitled “General Introduction to the Law of the Sea” and “Islands and Baselines” in the JICA Thematic Training Program for Diplomats, “Public International Law (Law of the Sea and the Peaceful Settlement of International Disputes)”, held at the JICA Tokyo.