Antimissile plan, for short

• Reagan program, for short
• Reagan's antimissile program: Abbr
• Military inits
• Reagan's Star Wars, briefly
• Govt. project whose logo depicted a shield in space
• 1991 State of the Union subject
• '80s defense prog
• Arms race plan: Abbr.
• Reagan era prog

Wikipedia Word definitions in Wikipedia
SDI may refer to: