Krum's campaigns Simeon I's campaigns Sviatoslav's invasion of Bulgaria Byzantine conquest of Bulgaria Uprising of Peter Delyan Second Bulgarian Empire The Battle of Thessalonica (Bulgarian: Битката при Солун) occurred in 995 or earlier, near the city of Thessalonica, Greece.

The Bulgarians under their ruler, Tsar Samuil, succeeded in ambushing and destroying the Byzantine garrison of Thessalonica, killing its commander, Gregory Taronites, and capturing his son Ashot.

After having secured his rule over most of the northern Balkans, he led a campaign against Thessalonica, Byzantium's second largest city, held by the doux Gregory Taronites.

However, as John Chaldos is attested as doux in Thessalonica in 995/6 in succession to Taronites, the campaign must have happened at the latest in 995, if not some time before.

He captured Larissa and reached Corinth, after which he learned about the approach of a Byzantine army under Nikephoros Ouranos and returned north.