Answer:

S

D

I

We have spotted SDI (3 Letters) a total of 9 times in our database. Below you may see the clues associated with SDI and also when and where was it last seen:

Referring crossword puzzle clues

• Reagan's Star Wars program: Abbr.
• Reagan-era mil. project
• Reagan Era “Star Wars” prog.
• Antinuke proposal of the 1980s
• Star Wars Program: Abbr.

Usage among publishers:

• Daily Themed: Nov 2, 2023
• Premier Sunday: Aug 6, 2023
• Eugene Sheffer: Mar 24, 2022
• Wall Street Journal: Mar 11, 2022
• Daily Themed: Feb 22, 2022