The Bulgarians had been perfectly well aware of the plans that lay behind the tremendous effort made by the Serbians at Katshanik Pass and they had sought to forestall part of it by attacking Kalkandelen, a point which had been taken and retaken more than once. On November 15, 1915, they took it again, and finally, driving the small Serbian force that had occupied it before them, they took Gostivar on the following day, the Serbians retiring to Kichivo, on the road to Monastir. On about the same day, or a little later, Boyadjieff, after a stiff fight, stormed the heights near Gilan, northwest of Kutshanik Pass, and, after occupying Gilan itself, advanced toward Pristina, reaching its vicinity by November 22, 1915.

The invaders had succeeded in their main object, which was to round up and if possible corner the main Serbian forces; they were now rolled back on to the great Kossovo Plain, where they were united, but considerably confused and hampered by the vast crowds of fugitives fleeing from all parts of the north, center and east of the country. Near Mitrovitza, on the north of the plain, near Pristina on the east of it, and at Katshanik at its southern extremity, the Austro-Germans and the Bulgarians had, by the beginning of the fourth week of November, 1915, absolutely rounded up and hemmed in all the larger forces of the Serbians. Here they must either surrender, engage in one last desperate battle that meant certain destruction, or retire backward into the mountains of Montenegro and Albania, which by this time were covered with deep snow.

It was finally decided to give the enemy one more battle and if that failed, as seemed inevitable, to retreat into the wilderness, thus defeating the main hope of Mackensen, which was to eliminate the Serbians entirely as a factor in the war, either by capturing the whole army or destroying it. King Peter himself was present, hoping by his presence to revive the spirits of his soldiers to such a pitch that they would make a hard fight, for by this time they had undoubtedly lost a good deal of their morale.

Von Gallwitz had passed through Nish and was now driving back the Serbian advance posts in the Toplitza Valley, while the Austrians, on his right, were pressing on toward Novi Bazar. As will be seen by a glance at the map, the Serbians were therefore bearing the concentrated attack of four armies; that which operated from Vishegrad, the mixed forces under Kövess, Gallwitz's army and the main Bulgarian forces. The pressure was incessant. Reenforcements had been hurried through from Germany to make good the heavy losses which had been sustained during the campaign. Communication between the main Serbian armies and the Serbians in the south had now been cut completely and only Prisrend and Monastir remained to be taken before the whole of Serbia and Serbian Macedonia would be cleared of the Serbian fighting forces.

The fight in the region of Pristina was to be the last grand battle of the retreat. Here what remained of the Serbian main forces took battle formation, finally to dispute the enemy's advance. To this end the remaining stock of gun ammunition and rifle cartridges had been carefully saved and a store of war material gathered at Mitrovitza in readiness for such a stand. The weary bullocks were turned loose from the gun carriages they hauled, for there could be no taking them along up among the crags of the mountain country. The guns themselves were brought into position on the surrounding hills, trenches were dug wherever possible. Machine guns were located to cover the mountain paths and valley roads, and strong redoubts, which had been thrown up with civilian labor before the army had arrived, were manned. And then there remained a brief period during which the weary soldiers could take some much needed rest.

There was something tragically significant that this last stand should be made on the plains of Kossovo, or the "Field of the Ravens," as it is sometimes called by the natives, on account of the great flocks of those birds that frequent it. For on this same field it was that Lazar, the last of the ancient Serbian czars, whose empire included the whole of Macedonia, Albania, Thessaly, northern Greece, and Bulgaria, had fought just such a last desperate battle against the Turks in 1389, and had gone down before the Moslem hordes, and with him the Serbian nation. Each year the Serbians had commemorated the anniversary of this event by mourning.

Kossovo Plain is a high plateau, forty miles long and ten wide; from its rolling fields the forbidding crags of Montenegro and Albania are plainly visible, black in summer and white with snow in winter.

The gray dawn of a November day brought the first mutterings of the storm that was presently to break in fury up and down the whole front. The ragged, mud-stained cavalry of Serbia came trotting wearily through the infantry lines, bearing signs of the many skirmishes they had taken part in. The outlying posts were exchanging rifle fire with the advance guards of the enemy and now, through his powerful field glasses, the Serbian commander could see great masses of the invading troops deploying against his front.

"You have come to see the death of a nation," he remarked to an American correspondent who was present.

"It is sad that a stranger's eyes should see us die," said another officer in high command.