Germany: Zeppelin VGO I (Staaken R I) giant tri-motor bomber first flies.
Somme: French engaged in heavy fighting near Albert.
CoS Yanushkevich vainly warns Northwest Front C-in-C Alexeiev of threat to West Galicia.
Carpathians: Brusilov claims 70,000 PoWs, more than 30 guns and 200 MGs captured since March 19.
Mesopotamia: Turks bombard Qurna and Ahwaz.