the French and the Serbs who were fighting at the Babuna Pass to bar the way to Prilep and Monastir, and at one time the French flung out their left to within ten miles of the Serbian position. But their own communications were threatened all down the narrow line of the Vardar, and they were hopelessly outnumbered by the Bulgarian forces. Retreat was the common misfortune and necessity. Prilep fell on 16 November; and farther north, as the Serbians retreated into Montenegro and Albania, the Austrians occupied Novi Bazar on 20 November, and Mitrovitza and Prishtina on the 23rd. On the 28th the Germans announced that "with the flight of the scanty remnants of the Serbian army into the Albanian mountains our main operations are closed." There was something still for the Bulgars to do. Pursuing the Serbians in retreat from the Babuna Pass they reached the Greek frontier and cut the railway between Salonika and Monastir at Kenali on 29 November, and on 5 December occupied Monastir itself. The Greek frontier was a feeble protection, and the French at Kavadar were threatened with encirclement on their left. Kavadar had to be evacuated and a retreat secured by hard fighting at Demir Kapu. Simultaneously the British holding the front towards Lake Doiran were severely attacked, and on 6-7 December had 1300 casualties and lost 8 guns. But the enemy failed to cut off the retreat, and by the 12th both the French and British forces were on Greek territory fortifying a magnificent position which stretched from the mouth of the Vardar round to the Gulf of Orphano and enclosed the Chalchidice peninsula. Strong measures had to be taken to ensure the safety of Salonika with its cosmopolitan population, and the enemy hoped for its fall in January. But there was great reluctance to attack lines which were daily growing more formidable and were held by troops that were being gradually reinforced. Bulgarian ambition was also restrained by German counsels, for even Constantine and his new and pusillanimous premier, Skouloudis, might resent the occupation of Salonika by their hereditary rivals, and the Kaiser trusted more to family and diplomatic influence at Athens than to Bulgarian valour. The Germans themselves were more intent on consolidating the Berlin-Constantinople corridor and their hold upon the Turks than on Salonika, which fell within the Austrian sphere of influence, and might thus, if taken, become an apple of discord between its captors.