Великая Болгария
Not long after the Slavic incursion, Moesia was once again invaded, this time by the Bulgars under Khan Asparukh. Their horde was a remnant of Old Great Bulgaria, an extinct tribal confederacy situated north of the Black Sea in what are now parts of Ukraine and Russia. Asparukh attacked Byzantine territories in Moesia and conquered the Slavic tribes there in 680.