Complex sentence: In 1915, he followed the young men of his parish to serve as an army chaplain, in Eqypt, Gallipoli and France as a Chaplain Captain with the 6th Infantry AIF.
Split into simpler sentences: In 1915, he followed the young men of his parish to serve as an army chaplain in Eqypt and then Gallipoli. In France, he served as a Chaplain Captain with the 6th Infantry AIF.