 With these insults as pretext, land and sea forces under the command of Ibrahim Pasha were sent north to besiege Acre in October 1831.The city fell to Ibrahim's army six months later in May 1832.After Acre he continued on to win control of Aleppo, Homs, Beirut, Sidon, Tripoli, and Damascus; the armies sent by the Sultan and various local governors were unable to check Ibrahim's forces.