Aegean – First British transport lost: Coastal U-boat UB14 (Heimburg) (towed from Cattaro on July 16) sinks 11,117t Royal Edward near Cos Island, 865 of 1,366 troops lost.
Adriatic: French destroyer Bisson sinks Austrian sub U3 northeast of Brindisi.
Bugarmee repulsed from Vlodava on Upper Bug after 3 days fighting but breaks through on August 19. Russian First Army has retreated 73 miles since August 5.
Gallipoli: 22,000 Allied sick and wounded evacuated to Egypt and Malta since August 6.
East Africa: Germans capture Indian observation Post at Kasigao.