Dwight Eisenhower actually said...
If an accused is found guilty of an offense or offenses for none of which dishonorable discharge is authorized, proof of three or more previous convictions during the year next preceding the commission of any offense of which the accused stands convicted will authorize dishonorable discharge.
Context
Executive Order 10565—Amendment of Paragraphs 76a and 127c of the Manual for Courts-Martial, United States, 1951
09/27/1954