surrounding plain within range of their fire. Therefore, the problem
of an invading force is to take the mountain outside the city, rather
than the city itself.

Beyond this lofty eminence, to the westward, rise thickly wooded
ridges, rugged mountain fastnesses, through which, along the bottom of
a winding defile, runs the road to Resen and Ochrida and three large
lakes: Ochrida, Prespa, and Little Prespa. Below these lakes, which
almost join, is the Greek frontier; above them, and some distance
beyond, lies the Albanian frontier.

For some days Vassitch and his remaining force of a few thousand
footsore soldiers remained at Prilep, awaiting the Bulgarians. When
finally they took Brod, with the object of cutting off his retreat, he
quitted Prilep and fell back on Monastir, then retired over the
mountains to Resen. Here he was joined by two barefooted regiments
that had come down from the north with the refugees, but they were too
exhausted to be of much value for fighting. Altogether they numbered
about 7,000, while the pursuing Bulgarians were at least 30,000
strong. At Resen, where the roughness of the country enabled them to
make some resistance, they fought the last battle, or skirmish rather,
that was to take place between the Serbians and the invaders, then
retired down along the eastern shore of Lake Prespa and so over into
Greece. And now not one Serbian soldier remained either in Serbia
proper or Serbian Macedonia. Many of them were yet to do some more
fighting, against the Austrians at least, for Austria had yet to
invade and conquer that other little Serbian state, Montenegro. As yet
the Austrian right wing of Koevess's army had not entered Montenegro,
but maintained itself at Vishegrad, from which, using it as a pivot,
the center and left wing had swept over Serbia. From Vishegrad across
the northern boundary of Montenegro stretched another force of
Austrians, meant only to hold the Montenegrins back. Hitherto, the
Montenegrin army had been facing this line, without being able to
afford the Serbians much assistance. It was not until after the last
of the Serbians had been dealt with that the Austrians turned their
attention toward the Montenegrins and the conquest of their rugged
country. Nor did they seriously undertake this task until toward the
end of the year; the whole of this campaign is an episode by itself
and will be dealt with presently.

With the disappearance of the last of the Serbian armies