The
Bulgarian–Ottoman wars were fought between the kingdoms remaining from the disintegrating
Second Bulgarian Empire, and the
Ottoman Empire, in the second half of the 14th century. The wars resulted with the collapse and subordination of the Bulgarian Empire, as the last standing Kingdom, the
Tsardom of Vidin, was conquered in 1396. As a result of the wars the Ottoman Empire greatly expanded its territory on the Balkan peninsula, stretching from
Danube to the
Aegean Sea.