March 1990 saw VAW-121 embark on USS "Dwight D. Eisenhower" for another Mediterranean deployment. This deployment was highlighted by 15 days of around the clock operations in the Red Sea in support of the initial phase of Operation Desert Shield when external AEW support was non-existent. Once again, in March 1991, VAW-121 was awarded both the Battle "E" and AEW Excellence Awards for 1990.