he top U.S. military commander will hold talks with Israeli officials this week, Israel said Sunday, at a time when the U.S. is concerned that Israel might be preparing to attack Iran over its nuclear program. The Israeli Defense Ministry confirmed the planned visit Thursday by Gen. Martin Dempsey, the chairman of the U.S. Joint Chiefs of Staff. It did not give his agenda for talks with Israelis, but Iran is expected to be at the top.