Complex sentence: The Train was then transferred, temporarily, on December 26th 1915 to the Australian and New Zealand Army Corps-disciplinary matters being handled by Admiral Wemyss, the Royal Navy officer commanding the Port of Moudros.
Split into simpler sentences: The Train was then temporarily transferred, on December 26th 1915, to the Australian and New Zealand Army Corps. Disciplinary matters, though were handled by Admiral Wemyss, the Royal Navy officer commanding the Port of Moudros.