Subunits:

• 14th Light Horse Regiment 18 July 1918 to past November 1918
• 15th Light Horse Regiment 18 July 1918 to past November 1918
• French 1er Regiment Mixte de Cavalerie du Lavant 18 July 1918 to October 1918
• New Zealand 2nd Machine Gun Squadron 18 July 1918 to past November 1918
• 5th Signal Troop 18 July 1918 to past November 1918

Commander:

• Brigadier General G. M. MacArthur Onslow July 1918 to past November 1918

Outdoors group portrait of Brigadier General G M Macarthur Onslow, Commander of the 5th Australian Light Horse Brigade, 1918-1919, and unidentified Headquarters' staff, in front of a tent.

Campaigns:

• Palestine: 
  • Megiddo, 
  • Damascus