In 1914-1917 Vasily Kravkov took part in World War I. In August–September 1914 in the XXV Army Corps (5th Army, Southwestern front) he took part in the Battle of Galicia, since September 1914 to December 1915 was the Cheef Assistant of the 10th Army Sanitary Department (Northwestern, later Western front), in December 1915 he was appointed XXXVII Army Corps doctor (12th Army, Northern front). Since April 1916 Vasily Kravkov served as a VII Siberian Army Corps doctor. In May 1917 he was promoted to Privy Councilor (III grade of the