Yes, it is.
Per myarmybenefits.us.army.mil:
"Designated combat zones are listed in Department of Defense (DoD) Financial Management Regulation (FMR) Volume 7A, Chapter 44, Paragraph 440103 (DoD FMR Vol. 7A, Ch 44):
- Effective January 17, 1991, Executive Order 12744 designated the following areas (including air space and adjacent waters) as CZs: Persian Gulf; Red Sea; Gulf of Oman; Gulf of Aden; that portion of the Arabian Sea that lies north of 10 degrees N. Lat., and west of 68 degrees E. Long.; and the total land areas of Iraq, Kuwait, Saudi Arabia, Oman, Bahrain, Qatar, and the United Arab Emirates.
- Effective March 24, 1999, Executive Order 13119 designated the following areas (including the airspace above) as a CZ: The Federal Republic of Yugoslavia (Serbia and Montenegro), Albania, the Adriatic Sea, and the Ionian Sea north of the 39th parallel. (Note: The CZ designation for Montenegro and Kosovo (previously a province within Serbia) under Executive Order 13119 remains in force even though Montenegro and Kosovo became independent nations since Executive Order 13119 was signed in March 1999.) Additionally, Public Law 106-21, dated April 19, 1999, designated these same areas as QHDAs.
- Effective September 19, 2001, Executive Order 13239, December 12, 2001, designates Afghanistan, including the air space above, as an area in which Armed Forces of the U.S. are and have engaged in combat."
