a report to the assembly, reminding them of Hulagu's friendliness towards Christians, and assuring them that Abaqa planned to drive the Muslims from Syria. But neither this diplomatic mission, nor two further embassies to Europe in 1276 and 1277, brought any tangible results. Campaign during the Ninth Crusade (1271) In 1260 Bohemond VI of Antioch was persuaded by his father-in-law, Hetoum I of Armenia, to voluntarily submit to Mongol authority while Abaqa's father Hulagu was in power, making Antioch and Tripoli vassal states of the Ilkhanate. In 1268, the Mamluk leader Baibars captured Antioch, and Bohemond obtained a truce with Baibars in order to avoid losing Tripoli. In response to the fall of Antioch, Edward I of England arrived in Acre in 1271, trying to lead a new Crusade. It was ultimately considered a military failure, but Edward was able to eventually secure a truce with the Mamluks before he had to return to England. When Edward arrived in Acre, he had sent an embassy to Abaqa, led by Reginald Rossel, Godefroi of Waus and John of Parker, requesting military assistance from the Mongols. Abaqa was occupied with other conflicts in Turkestan but responded positively to Edward's request, sending 10,000 Mongol horsemen under general Samagar from the occupation army in Seljuk Anatolia to Syria: The Mongols, including some auxiliary Seljuk troops, ravaged the land from Aleppo southward. Though the force was relatively small, they triggered an exodus of the Muslim population (who remembered the previous campaigns of the Mongol general Kitbuqa) as far south as Cairo. Edward, for his part, was never able to muster his own forces to coordinate actions with the Mongols or even achieve any military victories, so Abaqa's forces eventually withdrew. When Baibars mounted a counter-offensive from Egypt on 12 November 1271, the Mongols had already retreated beyond the Euphrates. Campaigns of 1280–1281 The Mamluk leader Baibars died in 1277. During 1280 and 1281, Abaqa promoted new attacks against Syria. In September 1280, the Mongols occupied Baghras and Darbsak, and took Aleppo on October 20. The Mongols sent envoys to Acre to request military support for their campaign, but the Crusaders were still in a 10-year truce with the Mamluks. The Vicar of the Patriarch declined Abaqa's request, saying that the city was suffering from hunger, and that the king of Jerusalem was embroiled in another war. The King of Cyprus Hugh III and Bohemond VII