The Egyptian Muslims had respected a 10-year truce with the Crusaders which began in 1271.
 On 3 May 1281, the new Muslim sultan Qalawun signed a new 10-year truce with the Barons of Acre and a second 10-year truce with Bohemond VII of Tripoli, on 16 July 1281.

The announced Mongol invasion started in September 1281.
They were joined by the Armenians under Leo III, and by about 200 Hospitalier knights from the fortress of Marqab, who considered they were not bound by the truce with the Mamluks.

On 30 October 1281, 50,000 Mongol troops, together with 30,000 Armenians, Georgians, Greeks, and the Hospitalier Knights of Marqab fought against the Muslim leader Qalawun at the Second Battle of Homs, but were beaten back.
The Egyptian Muslims had respected a 10-year truce with the Crusaders which began in 1271.  On 3 May 1281, the new Muslim sultan Qalawun signed a new 10-year truce with the Barons of Acre and a second 10-year truce with Bohemond VII of Tripoli, on 16 July 1281.
The announced Mongol invasion started in September 1281. They were joined by the Armenians under Leo III, and by about 200 Hospitalier knights from the fortress of Marqab, who considered they were not bound by the truce with the Mamluks.
On 30 October 1281, 50,000 Mongol troops, together with 30,000 Armenians, Georgians, Greeks, and the Hospitalier Knights of Marqab fought against the Muslim leader Qalawun at the Second Battle of Homs, but were beaten back.
Abaqa Khan