On January 2, 2020, the U.S. military took decisive defensive action to protect U.S. personnel abroad.  Iranian response, if any, is unknown; however, there remains the possibility of Iranian action against U.S. maritime interests in the region.  U.S. commercial vessels operating in this area should review U.S. Maritime Advisory 2019-012.  This Alert will automatically expire on January 10, 2020.  For more information about U.S. Maritime Alerts and Advisories, including subscription details, please visit http://www.marad.dot.gov/MSCI.