Charles was commissioned as a 2nd Lieutenant with the Kings Own Yorkshire Light Infantry. He was promoted to Captain on the 22nd of February 1916. Chales was then later transferred to become Adjutant of 10th Battalion Sherwood Foresters on the 7th of November 1917. Charles was promoted to Major on the 29th of December 1917.  

 On the 30th of April 1918, he commanded the rear-guard of his Battalion during a retirement from Hermies, with good leadership. Charles’ command enabled the Battalion to get away with few casualties whilst inflicting heavy ones on the enemy. He made many personal reconnaissance’s of doubtful spots and obtained valuable information. Charles received the Distinguished Service Order for conspicuous gallantry and devotion to duty for this day. 

Charles then transferred to the 7th Battalion Lincolnshire Regiment on the 6th of October 1918 to 6th of January 1919.