A memorandum from the Office of the Deputy Secretary of Defense, dated April 26, 2002, authorized the reinstatement of the NDSM for all active duty personnel retroactive to September 11, 2001. Executive Order 13293, dated March 28, 2003, amended EO 10448 to extend eligibility to all Selected Reserve personnel (i.e. actively drilling members of the reserve components to include the National Guard). As EO 13293 amended the EO which established the NDSM, this made Selected Reserve personnel from all previous eligibility periods eligible for the NDSM, to include those who served during the Korean and Vietnam eras.