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US Secretary of War Pete Hegseth and Japan’s Minister of Defense Shinjiro Koizumi inspect a guard of honor on October 29, 2025 in Tokyo, Japan. (Getty Images)
Former National Security Advisor and Chairman of American Global Strategies, LLC.
Ambassador (Ret.) Robert C. O’Brien is the co-founder and chairman of American Global Strategies. He was the 28th U.S. national security adviser from
Ambassador (Ret.) Robert C. O’Brien is the co-founder and chairman of American Global Strategies. He was the 28th U.S. national security adviser from 2019-2021.