Robert O'Brien
Robert O’Brien is the partner-in-charge of the Arent Fox Los Angeles office. His practice focuses on commercial litigation and domestic and international arbitration, including intellectual property, entertainment, complex business disputes and election law matters for Fortune 500 corporations, privately held companies and individuals.

President George W. Bush nominated and the US Senate confirmed Robert as the US Alternate Representative to the 60th session of the United Nations General Assembly, which met in New York 2005-2006. In addition to his other duties as a US delegate, he addressed the General Assembly on the question of Palestine and represented the United States in the General Assembly’s Sixth Committee, which considered the Comprehensive Convention on International Terrorism.
From 1996 to 1998, Robert was a legal officer with the United Nations Security Council (Compensation Commission) in Geneva, Switzerland, where he led a multinational team of attorneys, loss adjusters and accountants in the government claims (F) section and was responsible for the Secretariat’s review and processing of billions of dollars in claims resulting from Iraq’s 1990-91 invasion and occupation of Kuwait.
Robert served as a major in the Judge Advocate General’s Corps of the US Army Reserve. In 1990, he was a judicial extern-clerk to the Honorable J.P. Vukasin Jr. in the Northern District of California.