The SDI program also held important budget implications. In May 1993 Aspin announced "the end of the Star Wars era," explaining that the collapse of the Soviet Union had determined the fate of SDI. He renamed the Strategic Defense Initiative Organization as the Ballistic Missile Defense Organization (BMDO) and established its priorities as theater and national missile defense and useful follow-on technologies. Aspin's assignment of responsibility for BMDO to the under secretary of defense (acquisition and technology) signified the downgrading of the program.