June-July - Battle of Bosra - A small Muslim army under Khalid ibn al-Walid lay siege to the city of Bosra, decisively defeating a larger army of Romans and Christian Arabs
July - Battle of Ajnadayn - The first major pitched battle between the Muslim Arabs under Khalid ibn al-Walid against a larger Roman army under Heraclius leads to a decisive Muslim victory for Khalid
Aug-Sept - Conquest of Damascus- Thomas surrenders after four week siege with no relief in sight and Muslim forces inside the city.
Sept - Battle of Saniyyat-ul-Uqab - 12,000 Byzantines were defeated in an attempt to break the siege of Damascus in a battle 20 miles north of the city
Sept - Battle of Marj-ud-Deebaj - Refugees from the surrender at damascus are intercepted just short of Antioch and butchered by Muslim forces.
Second Siege of Stirling Castle - April - July - Edward I besieges the Scots. The Warwolf siege engine is constructed and first used during this battle.
Battle of Mons-en-Pévèle - August 17 - Lowland rebels defeated the French under King Philip IV. The French claimed victory, as they remained in possession of the battlefield. A bloody draw.
Battle of Morlaix Besieged by the English, a French relief army broke the siege of Morlaix. When the English retreated into a wood, the French withdrew.
1389 - Battle of Kosovo Polje Ottoman army gathered by Murad I and Serbian army under Knez Lazar beat each other into the ground. There is no clear outcome.