Strategic Defense Initiative

美 [strəˈtiːdʒɪk dɪ'fens ɪˈnɪʃətɪv]英 [strəˈtiːdʒɪk dɪ'fens ɪˈnɪʃətɪv]

noun

abbr. SDI战略防御计划（美国倡议利用太空技术防御导弹袭击）
a US military plan in which it was intended to use technology in space to defend against missiles

1

American president Reagan announced his " strategic defense initiative " to all his peoples through the TV on the night of March 23 , 1983 , which later was called " Star wars " speech .

1983年3月23日晚，美国总统里根通过电视向全国发表了战略防御倡议（SDI）的电视讲话，该倡议后来被人们形象地称为星球大战计划。