The facts about the president's service.

FOUR YEARS OF FLYING
The controversy over Bush's service centers on what his critics call "the period in question," that is, the time from May 1972 until May 1973. What is not mentioned as often is that that period was in fact Bush's fifth year in the Guard, one that followed four years of often intense service.

Bush joined in May 1968. He went through six weeks of basic training — a full-time job — at Lackland Air Force Base in San Antonio, Tex. Then he underwent 53 weeks of flight training — again, full time — at Moody Air Force Base in Valdosta, Ga. Then he underwent 21 weeks of fighter interceptor training — full time — at Ellington Air Force Base in Houston. Counting other, shorter, postings in between, by the end of his training period Bush had served two years on active duty.

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