November 25 December 3 Battle of Bucharest . Home Fronts In London , Lloyd George tells Haig that he considered the political situation serious . Lord Lansdowne had written a terrible paper urging that we should make peace now if the Naval , Military , financial and other Heads of departments could not be certain of victory by next autumn . German air force established as a separate branch of the army . The German air forces established as a separate branch of the German army . Sea War Eastern Atlantic Unescorted French old battleship Suffren making only 9 kts sunk with all hands by U 52 off Lisbon . Eastern Front Rumania Falkenhayn ' s Group Kraftt occupies Rimnik south of Rotenturm Pass Falkenhayn ' s German troops foiled at Slatina November 2526 . Mackensen turns Aluta position by advancing towards Alexandria and Rosiori . Rumanian authorities begin leaving Bucharest for Jassy as general retreat ordered . Eastern Front German advance on Bucharest fighting at Curtea de Arges and German occupation of Rymnik on south , German advance towards Rosiori and Alexandria . Upper Aluta position turned . Political , etc . German Patriotic Auxiliary Service Bill presented to Reichstag . 25 November 1916 Gen . Von Luttwitz to command IIIrd Prussian Army CorpsGermany Gen . Von Luttwitz to command IIIrd Prussian Army Corps Von Lochow . On Land Rumania Mackensen joined Falkenhayn Upper Aluta line turned . Rumanian Orsova garrison cut off . At Sea North Sea German naval raid on Lowestoft armed trawler Narval sunk .