| Answer | Crossword Clue |
|---|---|
| SDI | Pres. Reagan's "Star Wars" program |
| SDI | Reagan's "Star Wars" program: Abbr. |
| SDI | Reagan's Star Wars program: Abbr. |
| SDI | Inits. of Reagan's "Star Wars" program |
| SDI | Initials of Reagan's "Star Wars" program |
| SDI | Reagan's "Star Wars" program, for short |
