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The International Court of Justice (ICJ) served as the platform where Frank Kellogg represented the United States as Secretary of State. Established in 1946 as the principal judicial organ of the United Nations, the ICJ is responsible for resolving legal disputes between states in accordance with international law. Kellogg's presence at the ICJ underscores the United States' commitment to upholding international legal norms and resolving conflicts peacefully through judicial processes.