4th August 1918
Western Front
Americans take Fismes; Allies on right bank of Vesle.
End of Second Battle of the Marne.
Eastern Front
General Kirchbach takes command at Kiev.
Political, etc.
On recommendation by Lieutenant Hugo Gutmann, a German Jewish soldier, Gefreiter Adolf Hitler is awarded the Iron Cross, First Class.
Ship Losses:
Clan Macnab (United Kingdom) The cargo ship was torpedoed and sunk in the Irish Sea 14 nautical miles (26 km) north north west of the Pendeen Lighthouse, Cornwall (50°20′N 5°55′W) by
SM U-113 ( Kaiserliche Marine) with the loss of 22 crew.
Don (Norway) The barque was sunk in the Atlantic Ocean 350 nautical miles (650 km) west of the Skellig Islands (50°44′N 16°21′W) by
SM U-157 ( Kaiserliche Marine). Her crew survived.
Hundvaagø (Norway) The cargo ship was torpedoed and sunk in the Bay of Biscay 2 nautical miles (3.7 km) off Groix, Finistère by
SM UB-88 ( Kaiserliche Marine) with the loss of three of her crew.
Nelson A. (United Kingdom) The schooner was scuttled in the Atlantic Ocean 25 nautical miles (46 km) south of Shelburne, Nova Scotia, Canada by
SM U-156 ( Kaiserliche Marine). Her crew survived.
O. B. Jennings (United States) The tanker was sunk in the Atlantic Ocean 100 nautical miles (190 km) off the coast of Virginia (36°40′N 73°58′W) by
SM U-140 ( Kaiserliche Marine) with the loss of two crew. One of the survivors was taken as a prisoner of war.
Reinhard (Russia) The schooner was shelled and sunk in the Irish Sea north east of Ireland (55°27′N 6°45′W) by
SM U-96 ( Kaiserliche Marine).
Remonstrant (Norway) The barque was sunk in the Atlantic Ocean 280 nautical miles (520 km) west of the Fastnet Rock (50°30′N 18°00′W) by
SM U-157 ( Kaiserliche Marine). Her crew survived.