Editing Alfred Dreyfus (section)

===World War I===
Dreyfus' prison sentence on Devil's Island had taken its toll on his health. He was granted retirement from the army in October 1907 at the age of 48. As a reserve officer, he re-entered the army as a major of artillery at the outbreak of [[World War I]]. Serving throughout the war, Dreyfus was promoted to the rank of [[lieutenant colonel]].

By then in his mid-50s, Dreyfus served mostly behind the lines of the [[Western Front (World War I)|Western Front]], in part as commander of an artillery supply column. However, he also performed front-line duties in 1917, notably at [[Battle of Verdun|Verdun]] and on the [[Chemin des Dames]]. He was promoted to Officer of the [[Legion of Honour]] in November 1918.<ref>[http://www.dreyfus.culture.fr/en/chronology-html.htm Biography of Alfred Dreyfus and General Chronology] {{Webarchive|url=https://web.archive.org/web/20150413003708/http://www.dreyfus.culture.fr/en/chronology-html.htm|date=13 April 2015}}, French Ministry of Culture and Communication</ref>

Dreyfus' son Pierre also served throughout the entire war as an artillery officer, receiving the [[Croix de guerre 1914–1918 (France)|Croix de guerre]].