Brig. Gen. (res.) Erez Winner is an expert in military affairs and doctrine at the Jerusalem Institute of Strategy and Security. He served in key command roles in the IDF, including as commander of the Duchifat Battalion and the Etzioni Brigade, and later as aide to the Chief of Staff. He also headed the operational planning team in the Southern Command in his reserve service. In the business sector, he has served as CEO of several major Israeli companies, including G. Willi-Food International, Jerusalem Wineries, and currently Jack Deri Real Estate Entrepreneurship Ltd.