 Following the war he was commissioned a second lieutenant in a regular battalion of the Gordon Highlanders on 23 April 1902.After a spell with the Leicestershire Regiment, a transfer Crockett made so he could concentrate on his passion of fox hunting, but subsequently regretted.He left the army in 1914, only to immediately rejoin on the outbreak of the First World War, whereupon he was given command of the 11th Battalion, Hampshire Regiment at Farnham; a command Crockett, as essentially a cavalry officer, initially resented.