Air War
Western Front: Germans form first regular fighter squadron Jasta 1 (Captain Martin Zander), Boelcke’s Jasta 2 (August 30), both and two more units assigned to Somme.
Britain: Army Zeppelin LZ97 scatters 34 bombs over Suffolk (night 23/24, no casualties).
Southern Fronts
Carnic Alps: Italian XVIII Corps begins advance to drive Austrians from Fassa Alp, captures Mt Cauriol (August 27).
Middle East
Mesopotamia, Persia – Battle of Rayat: Russians defeat Turks who lose 2,300 PoWs.
African Fronts
East Africa: Smuts’ main advance resumes from Dakawa, but 2nd SA Mounted Brigade checked at Mlali (August 24-26) though 2 German naval guns abandoned.