Answer: SDI
SDI is a crossword puzzle answer that we have spotted 130 times.
    - 80's military inits.
 
    - Star Wars, initially
 
    - Reagan prog.
 
    - 80's Pentagon letters
 
    - Star Wars: Abbr.
 
    - Star Wars program: Abbr.
 
    - Arms race abbr.
 
    - Star Wars letters
 
    - Weapons prog. since 1983
 
    - Cold war abbr.
 
    - Reagan military program, for short
 
    - 1980's military prog.
 
    - Cold war proj.
 
    - Reagan's long-range plan?: Abbr.
 
    - Star Wars initials
 
    - High-tech program, for short
 
    - Proj. begun in 1984
 
    - 1980's program: Abbr.
 
    - Reagan pet project: Abbr.
 
    - ABM treaty violator
 
    - Star Wars inits.
 
    - Military inits.
 
    - Reagan program, for short
 
    - Project against ICBM's
 
    - 80's defense letters
 
    - Reagan-era mil. program
 
    - Controversial 1980's proposal: Abbr.
 
    - Reagan military inits.
 
    - Reagan-era program: Abbr.
 
    - 1980's proposal: Abbr.
 
    - Star Wars mil. project
 
    - Controversial 1980's plan: Abbr.
 
    - Cold war plan: Abbr.
 
    - Reagan program inits.
 
    - Program introduced by R.W.R.
 
    - Arms race plan: Abbr.
 
    - Star Wars program, for short
 
    - Star Wars, briefly
 
    - Reagan antimissile plan, for short
 
    - U.S. Star Wars program
 
    - Reagan cause: Abbr.
 
    - "Star Wars" letters
 
    - Reagan defense prog.
 
    - Reagan R&D program
 
    - Cold war initials
 
    - "Star Wars" plan, familiarly
 
    - Reagan's Star Wars letters
 
    - Reagan-era proposal (abbr.)
 
    - Star Wars, for short
 
    - Reagan's "Star Wars" prog.
 
    - Reagan era prog.
 
    - Initials of Reagan's "Star Wars" program
 
    - Reagan mil. program
 
    - Gov. "Star Wars" project
 
    - Controversial Cold War prog.
 
    - Reagan-era defense prog.
 
    - 1980s defense prog.
 
    - "Star Wars" plan, for short
 
    - Reagan's antimissile program: Abbr.
 
    - Prog. that introduced Brilliant Pebbles
 
    - "Star Wars" abbr.
 
    - Dept. of Defense program of the 1980s
 
    - ABM project of the '80s
 
    - Reagan prog. introduced in 1983
 
    - '80s defense prog.
 
    - Reagan security prog.
 
    - Anti-ICBM plan
 
    - Reagan-era prog.
 
    - ''Star Wars'' initials
 
    - Program proposed by RWR
 
    - Reagan def. program
 
    - ''Star Wars'' program
 
    - Reagan program, initially
 
    - '80s anti-missile prog.
 
    - Reagan's ''Star Wars,'' for short
 
    - Star Wars abbr.
 
    - Reagan's Star Wars proj.
 
    - Star Wars research prog.
 
    - U.S. "Star Wars" plan
 
    - Reagan's "Star Wars" plan
 
    - Star Wars to R.W.R.
 
    - Reagan mil. plan
 
    - Reagan's Star Wars, briefly
 
    - Star Wars, to R.W.R.
 
    - RWR initiative
 
    - Reagan's Star Wars
 
    - Reagan-era program, in brief
 
    - Reagan initiative (abbr.)
 
    - Reagan's "Star Wars" program, for short
 
    - '80s missile shield prog.
 
    - Reagan's "Star Wars," for short
 
    - ICBM targeter
 
    - Star Wars in D.C.
 
    - Arms race initials
 
    - Star Wars prog.
 
    - Reagan's ABM prog.
 
    - "Star Wars" initials
 
    - "Star Wars" program
 
    - Cold War prog.
 
    - Arms race inits.
 
    - '80s military initialism
 
    - Reagan era proj.
 
    - Reagan's high-tech weapons prog.
 
    - 1991 State of the Union subject
 
    - '80s "Star Wars" plan
 
    - Reagan era acronym
 
    - 'Star Wars' abbr.
 
    - Anti-ICBM plan of the Reagan era
 
    - 'Star Wars' initials
 
    - Reagan's Star Wars program
 
    - Reagan's "Star Wars" plan, for short
 
    - Reagan antimissile program, for short
 
    - Regan-era mil. program
 
    - Antimissile plan, for short
 
    - Downloadable prog.
 
    - Reagan era mil. program
 
    - Reagan's Star Wars prog.
 
    - Reagan's Star Wars program: Abbr.
 
    - Cold War missile prog.
 
    - Govt. project whose logo depicted a shield in space
 
    - Reagan's antimissile program (abbr.)
 
    - "Star Wars" plan under Reagan, for short
 
    - Pres. Reagan's "Star Wars" program
 
    - 1980s missile prog.
 
    - '80s missile shield plan
 
    - "Star Wars" syst.
 
    - Deterrent announced in 1983: Abbr.
 
    - '80s missile prog.
 
    - "Star Wars" project of the 1980s
 
    - Cold War mil. program