In August 1914, Bracegirdle enlisted in the
Australian Naval and Military Expeditionary Force, serving as a staff officer in German New Guinea until the force was disbanded in February 1915. That month he was appointed commander of the
1st Royal Australian Naval Bridging Train and was sent to
Gallipoli to prepare for the British landings at Suvla Bay in August 1915. His unit performed well under relentless shrapnel fire and remained at Suvla, where Bracegirdle was wounded, until the end of the campaign. Having constructed the piers used during the British landing, the bridging train carried out maintenance duties; assisted with the landing of troops, stores, and ammunition; and finally assisted with the evacuation in December. After a period in
hospital suffering from jaundice and
malaria, Bracegirdle returned to his unit, which was now working on the
Suez Canal. Bracegirdle was awarded the
Distinguished Service Order in June 1916 and received his third
Mention in Despatches in July of that year. The bridging train remained in the Middle East, assisting with the Allied advance across the Sinai by landing stores on the Mediterranean coast, but was disbanded at the beginning of 1917. Bracegirdle's command ended in March and he returned to Australia having been promoted to
commander. ==Post-war and Official Secretary==