William S. Greenberg served as Chairman of the Reserve Forces Policy Board from 2009 – 2011.

William S. Greenberg took the oath as Chairman on 31 August 2009, received his letter of appointment from the Secretary of Defense on 6 November 2009 and was reappointed by the Secretary of Defense effective 31 August 2010.

Mr. Greenberg is a Partner of McCarter & English, LL P. He is a member of the Bar of New Jersey, New York and The District of Columbia, The Supreme Court of the United States and several District and Circuit Courts of the United States. He has been a Certified Civil Trial Attorney by the Supreme Court of New Jersey since 1983. He was President of the Association of Trial Lawyers of America, New Jersey, (The New Jersey Association of Justice) and has served as Trustee of the New Jersey State Bar Association and of the New Jersey State Bar Foundation.

In June 2009 he received the highest honor granted by the New Jersey State Bar Foundation, its medal of honor for his work in establishing the military legal assistance program, and especially in his public service (pro bono) representation of soldiers at Walter Reed. Retired Brigadier General Greenberg also served as special litigation counsel to The Adjutants General Association of the United States and was special litigation counsel (pro bono) to the National Guard Association of The United States. He received the Distinguished Service Medal from the National Guard Association of the United States. General Greenberg was also awarded the Presidential Achievement Award by the New Jersey State Bar Association for his public service in establishing the program of Military Legal Assistance (pro bono) for New Jersey reserve component personnel in Iraq and Afghanistan.

His military awards include the Legion of Merit, the Meritorious Service Medal (second award), and the Army Commendation Medal.

Mr. Greenberg was a Commissioner of the New Jersey State Commission of Investigation. He also served as Assistant Counsel to the Governor of New Jersey and as a Commissioner of the New Jersey State Scholarship Commission. Professor Greenberg serves as the first Adjunct Professor of Military Law at The Seton Hall University School of Law. He was chosen the New Jersey Lawyer Of The Year for 2009 by The New Jersey Law Journal. He has received The Distinguished Alumnus Award from Johns Hopkins in 2010, and The Rutgers Public Service Award for 2010 for his work in developing and leading the efforts to represent wounded and injured soldiers at Walter Reed as a matter of pro bono public service. He received the Major General Howard A. Louderback, Lifetime Service Award from the New Jersey Committee of the ESGR in 2010.