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The International Advisory Council

Former US National Security Advisor Amb. Robert C. O’Brien

Ambassador Robert C. O’Brien

Amb. O’Brien, co-founder and chairman of American Global Strategies LLC, served as the 27th US National Security Advisor (NSA) from 2019 – 2021, serving as the President’s principal advisor on all aspects of American foreign policy and national security affairs.

During O’Brien’s tenure, the United States orchestrated the historic Abraham Accords in the Middle East, brokered economic normalization between Serbia and Kosovo, achieved significant defense spending increases among NATO allies and increased cooperation with America’s allies across the Indo-Pacific.

מר רוברט גרינווי

Mr. Robert Greenway

Robert Greenway is the Director of the Allison Center for National Defense at The Heritage Foundation, where he is responsible for the development of policies which promote a strong national defense safeguarding American freedom and prosperity. He previously served as President and Executive Director of the Abraham Accords Peace Institute. Mr. Greenway has more than 30 years of experience in public service, culminating as the senior U.S. government official responsible for developing, coordinating and implementing U.S. government policy for all of the Middle East and North Africa on the National Security Council. Prior to service on the NSC, he served as a Senior Intelligence Officer at the Defense Intelligence Agency, and a combat veteran of the United States Army Special Forces. 

Fleur Hassan-Nahoum

Fleur Hassan-Nahoum

Fleur Hassan-Nahoum grew up in Gibraltar and studied law at Kings College, London University. Before joining politics, Fleur worked in the Jewish nonprofit world and in strategic communications. Between 2016-2024 she served as a City Councilor in the Jerusalem Municipal Council, leader of the Opposition, and Deputy Mayor for foreign relations, economic development, and tourism. Fleur co-founded the UAE-Israel Business Council and the Gulf Israel Women’s Forum in 2020. Since September 2023, Fleur has been serving as Israel’s special envoy for innovation. In 2024, she became the first woman to be appointed as Secretary General for Kol Israel, the ideological successor to the General Zionist Party in the World Zionist Congress. She remains involved in the advancement of women’s rights and marginalized populations in Jerusalem, through economic development and the fight for a pluralistic Jerusalem.

פרופ' ישראל אומן

Nobel Laureate Prof. Yisrael Aumann

Prof. Yisrael (Robert) Aumann joined the mathematics department at the Hebrew University of Jerusalem in 1956 and has been there ever since. In 1990, he was among the founders of the Center for the Study of Rationality at the Hebrew University, an interdisciplinary research center centered on game theory. He is the author of more than a hundred scientific papers and seven books, and has held visiting positions at Princeton, Yale, Berkeley, Louvain, Stanford, Stony Brook, and NYU.

In 2005, he was awarded the Nobel Memorial Prize in Economic Sciences.

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