Col. (Res.) Dr. Danny Tirza was, from 1994 to 2007, in charge of regional strategic planning and the formulation of Israel's security positions in negotiations with the Palestinians in the IDF Central Command, and served as the IDF's chief architect for the Security Fence. He has taken part in formulating Israel's security positions in negotiations with the Palestinians. Col. Tirza specializes in the geography of Judea and Samaria, the Jordan Valley, and Jerusalem.