Order of battle for the Gallipoli Campaign

This is an order of battle listing the Allied and Ottoman forces involved in the Gallipoli Campaign during 1915.

Initial landings, 25 April 1915

 * 🇬🇧 Mediterranean Expeditionary Force (General Sir Ian Hamilton)
 * British 29th Division
 * Royal Naval Division
 * Australian and New Zealand Army Corps (Lieutenant General William Birdwood)
 * Australian 1st Division
 * New Zealand and Australian Division
 * New Zealand Infantry Brigade
 * 4th Australian Brigade
 * One aviation squadron: No. 3 Squadron, Royal Naval Air Service (based at Tenedos)
 * 🇫🇷 Oriental Expeditionary Corps (General Albert d'Amade)
 * 1st Division

August 1915

 * 🇬🇧 Mediterranean Expeditionary Force (General Sir Ian Hamilton)
 * VIII Corps (Lieutenant General Sir Francis Davies)
 * British 29th Division
 * 42nd (East Lancashire) Division
 * 52nd (Lowland) Division
 * Royal Naval Division
 * IX Corps (Lieutenant General Frederick Stopford)
 * 10th (Irish) Division
 * 11th (Northern) Division
 * 13th (Western) Division
 * Attached:
 * 53rd (Welsh) Division
 * 54th (East Anglian) Division
 * 2nd Mounted Division
 * Australian and New Zealand Army Corps (Lieutenant General William Birdwood)
 * Australian 1st Division
 * Australian 2nd Division
 * New Zealand and Australian Division
 * New Zealand Infantry Brigade
 * 4th Australian Brigade
 * New Zealand Mounted Rifles Brigade
 * 1st Australian Light Horse Brigade
 * Attached:
 * 29th Indian Infantry Brigade
 * One aviation wing: No. 3 Wing, Royal Naval Air Service (at Imbros)
 * 🇫🇷 Oriental Expeditionary Corps (General Maurice Bailloud)
 * 1st Division
 * 2nd Division
 * One aviation squadron: Escadrille MF98T (based at Tenedos)

Naval forces

 * SS River Clyde - improvised landing craft
 * HMS London (1899)
 * HMS Prince of Wales (1902)
 * HMS Queen (1902)
 * HMS Triumph (1903)
 * HMS Majestic (1895)
 * HMS Bacchante (1901)
 * HMS Ark Royal (1914)
 * HMS Manica
 * HMS Cornwallis (1901)
 * HMS Euryalus (1901)
 * HMS Implacable (1899)
 * HMS Dublin (1912)
 * HMS Goliath (1898)
 * HMS Queen Elizabeth (1913)
 * HMS Louis (1913)

Initial landing, 25 April 1915

 * Fifth Army (Otto Liman von Sanders)
 * III Corps (commanded by Mehmet Esat Bülkat)
 * 7th Division
 * 9th Division
 * 19th Division (Mustafa Kemal Atatürk)
 * XV Corps (Hans Kannengiesser)
 * 3rd Division
 * 11th Division
 * Dardanelles Fortified Area Command
 * One aircraft squadron

Note: When the campaign commenced, the Fifth Army comprised two army Corps; the III Corps was defending the Gallipoli peninsula and the XV Corps was defending the Asian shore. In addition, the 5th Division was positioned north of the peninsula under the command of First Army.

August 1915

 * Fifth Army (Otto Liman von Sanders)
 * I Corps
 * 2nd Division
 * 3rd Division
 * II Corps
 * 4th Division
 * 5th Division
 * 6th Division
 * III Corps
 * 7th Division
 * 8th Division
 * 9th Division
 * 19th Division
 * IV Corps
 * 10th Division
 * 11th Division
 * 12th Division
 * V Corps
 * 13th Division
 * 14th Division
 * 15th Division
 * Dardanelles Fortified Area Command
 * One aircraft squadron

Naval forces

 * SM U-21
 * Transport (sunk 27 April 1915)