WThe Siege of Acre was the first significant counterattack by King Guy of Jerusalem against Saladin, leader of the Muslims in Syria and Egypt. This pivotal siege formed part of what later became known as the Third Crusade. The siege lasted from August 1189 until July 1191, in which time the city's coastal position meant the attacking Latin force were unable to fully invest the city and Saladin was unable to fully relieve it with both sides receiving supplies and resources by sea. Finally, it was a key victory for the Crusaders and a serious setback for Saladin's ambition to destroy the Crusader States.
WThe Siege of Acre took place in 1291 and resulted in the Crusaders losing control of Acre to the Mamluks. It is considered one of the most important battles of the period. Although the crusading movement continued for several more centuries, the capture of the city marked the end of further crusades to the Levant. When Acre fell, the Crusaders lost their last major stronghold of the Crusader Kingdom of Jerusalem. They still maintained a fortress at the northern city of Tartus, engaged in some coastal raids, and attempted an incursion from the tiny island of Ruad, but when they lost that as well in 1302 in the Siege of Ruad, the Crusaders no longer controlled any part of the Holy Land.
WThe Siege of Ascalon took place in 1153, resulting in the capture of that Egyptian fortress by the Crusader Kingdom of Jerusalem.
WThe Siege of Burriana was one of the battles that occurred during the Conquest of Valencia by James I of Aragon. Burriana was an important Muslim city, being the capital of La Plana, Valencia. It was known as the "Green City". The city was besieged for two months, finally falling to the forces of James I in July 1233.
WThe Siege of Damascus took place between 24 and 28 July 1148, during the Second Crusade. It ended in a decisive crusader defeat and led to the disintegration of the crusade. The two main Christian forces that marched to the Holy Land in response to Pope Eugene III and Bernard of Clairvaux's call for the Second Crusade were led by Louis VII of France and Conrad III of Germany. Both faced disastrous marches across Anatolia in the months that followed, with most of their armies being destroyed. The original focus of the crusade was Edessa (Urfa), but in Jerusalem, the preferred target of King Baldwin III and the Knights Templar was Damascus. At the Council of Acre, magnates from France, Germany, and the Kingdom of Jerusalem decided to divert the crusade to Damascus.
WThe Siege of Al-Dāmūs was a battle of the Reconquista that occurred in the year 1210. The forces of the Kingdom of Aragon, together with auxiliary forces of the Knights Templar and Knights Hospitaller, were pitted against the defending forces of the Almohades. The Christian forces defeated the Muslim defenders. This battle was significant because in taking the castle at Ademuz, the Christian forces riled their Muslim opponents to initiate a grand offensive that would eventually culminate in the Battle of Las Navas de Tolosa. This offensive, in turn, marked the end of the Islamic domination of the region and the beginning of Christian rule in the province.
WThe Fall of Ruad in 1302 was one of the culminating events of the Crusades in the Eastern Mediterranean. When the garrison on the tiny Isle of Ruad fell, it marked the loss of the last Crusader outpost on the coast of the Levant. In 1291, the Crusaders had lost their main power base at the coastal city of Acre, and the Muslim Mamluks had been systematically destroying any remaining Crusader ports and fortresses since then, forcing the Crusaders to relocate their dwindling Kingdom of Jerusalem to the island of Cyprus. In 1299–1300, the Cypriots sought to retake the Syrian port city of Tortosa, by setting up a staging area on Ruad, two miles (3 km) off the coast of Tortosa. The plans were to coordinate an offensive between the forces of the Crusaders, and those of the Ilkhanate. However, though the Crusaders successfully established a bridgehead on the island, the Mongols did not arrive, and the Crusaders were forced to withdraw the bulk of their forces to Cyprus. The Knights Templar set up a permanent garrison on the island in 1300, but the Mamluks besieged and captured Ruad in 1302. With the loss of the island, the Crusaders lost their last foothold in the Holy Land. Attempts at other Crusades continued for centuries, but the Europeans were never again able to occupy any territory in the Holy Land until the 20th century, during the events of World War I.
WThe Siege of Shaizar took place from April 28 to May 21, 1138. The allied forces of the Byzantine Empire, Principality of Antioch and County of Edessa invaded Muslim Syria. Having been repulsed from their main objective, the city of Aleppo, the combined Christian armies took a number of fortified settlements by assault and finally besieged Shaizar, the capital of the Munqidhite Emirate. The siege captured the city, but failed to take the citadel; it resulted in the Emir of Shaizar paying an indemnity and becoming the vassal of the Byzantine emperor. The forces of Zengi, the greatest Muslim prince of the region, skirmished with the allied army but it was too strong for them to risk battle. The campaign underlined the limited nature of Byzantine suzerainty over the northern Crusader states and the lack of common purpose between the Latin princes and the Byzantine emperor.
WThe Fall of Tripoli was the capture and destruction of the Crusader state, the County of Tripoli, by the Muslim Mamluks. The battle occurred in 1289 and was an important event in the Crusades, as it marked the capture of one of the few remaining major possessions of the Crusaders. The event is represented in a rare surviving illustration from a now fragmentary manuscript known as the 'Cocharelli Codex', thought to have been created in Genoa in the 1330s. The image shows the countess dowager Sibylla of Armenia and Barthélémy Mansel, Bishop of Tortosa sitting in state in the centre of the fortified city, and Qalawun's assault in 1289, with his army depicted massacring the inhabitants fleeing to boats in the harbour and to the nearby island of St Thomas.