German submarine SM UB-43 in port, 1915–16. Image courtesy U-boats of the Kaiser’s Navy, 2002.
- German submarine SM UB-43 torpedoes and sinks two British cargo ships in the Mediterranean Sea 200 nautical miles east of Malta. The SS Russian loses 28 crewmembers; the SS Westminster, 15.
- British forces advance up the Shatt-el-Hai River to within 4kms of Kut-al-Amara
- The Entente Powers send an ultimatum to Greece demanding the withdrawal of all Greek armies from Thessaly
