The independence of Serbia and Montenegro in 1878 meant that Kosovo was the last line of defence for the Ottomans in Rumelia (Ottoman territory on the European continent).
Kemerdekaan Serbia dan Montenegro pada tahun 1878 berarti bahwa Kosovo merupakan garis pertahanan terakhir bagi Kesultanan Utsmaniyah di Rumelia (wilayah Utsmaniyyah di benua Eropa).