Disque was a Distinguished Graduate of the Infantry and Cavalry School at Fort Leavenworth in 1904-1905 after serving as a first lieutenant when he was promoted to captain under the 14-years-in-grade rule.
In September 1903, he accepted a transfer to the 3rd Cavalry, where a 1st lieutenant's billet was available. Disque was a Distinguished Graduate of the Infantry and Cavalry School at Fort Leavenworth in 1904-1905, then completed the Staff Course in 1905-1906, where his thesis was in law: The Suspension of the Privilege of the Writ of Habeas Corpus in the United States. Disque served as a first lieutenant until 1916, when he was promoted to captain under the 14-years-in-grade rule. 
