Ehud Barak (Hebrew: אהוד ברק (help·info), born Ehud Brog on 12 February 1942) is an Israeli politician who served as Prime Minister from 1999 until 2001. He was leader of the Labor Party until January 2011 and holds the posts of Minister of Defense and Deputy Prime Minister in Binyamin Netanyahu's government.
He is a graduate in physics, mathematics, and economics from Hebrew University and Stanford University. He served as an officer in the Israel Defense Forces. Following a highly decorated career, he was appointed Chief of General Staff in 1991, serving until 1995.
In 2005, he was voted the 61st-greatest Israeli of all time, in a poll by the Israeli news website Ynet to determine whom the general public considered the 200 Greatest Israelis.