Battle of Rusokastro

Infobox Military Conflict


caption=Coin depicting Ivan Alexander
conflict=Battle of Rusokastro
partof=the Byzantine-Bulgarian Wars
date=18 July 1332
place=The village of Rusokastro, Burgas Province, Bulgaria
result=Decisive Bulgarian victory
combatant1=
combatant2=
commander1=Ivan Alexander
commander2=Andronikos III Palaiologos
strength1=11,000
strength2=3,000
casualties1=Light
casualties2=Heavy

The Battle of Rusokastro occurred on July 18, 1332 near the village of Rusokastro, Bulgaria. The result was a Bulgarian victory.

Origins of the conflict

In 1328, the emperors of Bulgaria and Byzantium, Michael Asen III and Andronikos III Palaiologos, signed a secret treaty against Serbia. While Michael Asen III was fighting against the Serbs in 1330, the Byzantines invaded Thrace and captured the Bulgarian towns there. Following the defeat of Bulgaria in the Battle of Velbužd the Byzantines got a firm foothold there.

Prelude

The Byzantines were not ready for war. Their Empire was rent with civil unrest and the army was fighting against the Turks in Asia Minor. In the Bulgarian Empire, there were internecine struggles as well but the new Emperor Ivan Alexander knew that the decisive confrontation with Byzantium was yet to come and decided to improve his relations with the Serbs. In 1332, he concluded a peace treaty with them which lasted till his death. The treaty was secured with a marriage between the Serb king Stefan Dushan and the sister of the Emperor, Elena. In the summer of the same year, the Byzantines gathered an army and without a declaration of war headed towards Bulgaria, looting and plundering the villages on their way. The Byzantines seized several castles because Ivan Alexander's attention was focused towards fighting the rebellion of his uncle Belaur in Vidin. He tried to negotiate with the enemy but ultimately failed. The Emperor decided to act swiftly during the course of five days whereby his cavalry covered 230 km to reach Aitos and face the invaders.

The battle

Ivan Alexander had troops of 8,000 while the Byzantines were only 3,000. There were negotiations between the two rulers but the Bulgarian emperor deliberately prolonged them because he was awaiting reinforcements. In the night of July 17 they finally arrived in his camp (3,000 cavalrymen) and he decided to attack the Byzantines the next day. Andronikos III Palaiologos had no choice but to accept the fight. The Byzantines tried to prevent the Bulgarian cavalry from surrounding them, but their manoeuvre failed and they ran away from the battlefield and hid in Rusokastro. The battle began at 6:00 and ended at 9:00.

Aftermath

The Bulgarians returned their lost lands in Thrace and strengthened the positions of their empire. This battle was considered by the medieval Bulgarian historians as a great triumph of emperor Ivan Alexander. That was the last major battle between Bulgaria and Byzantium as their seven-century rivalry for domination on the Balkan was soon to come to an end after the fall of the two Empires under Ottoman domination.