WASHINGTON — President Bush is set to instruct the Treasury Department to block assets associated with Iran's revolutionary guard corps in a new executive order declaring financial war on foreign saboteurs of the Iraqi government. The paperwork to designate Iran's revolutionary guard corps, or IRGC, and Quds Force is now on the president's desk awaiting his signature, according to three administration officials who requested anonymity. The designation of the IRGC and Quds Force would mark the first time the finance related executive order process, reserved usually for foreign terrorist organizations, would be used against a branch of a foreign military.