sentences:  However Dreyfus and his supporters were disappointed that his five years of imprisonment were not taken into account for the reconstruction of his career and that his promotion to major was back-dated only to 10 July 1903.This decision blocked any hope of a career worthy of his past successes before his arrest in 1894.After serving for a year as commander of the artillery depot at Fort Neuf de Vincennes, Major Dreyfus retired in June 1907; a decision taken in part because of recurrent tropical fevers and chronic fatigue arising from the strain of his imprisonment.