A brief historical background of the Armenians and Mongols-Mongol Noyans in Greater Armenia (1220-1245)-Strategic submissions by the Armenians-Mongol administration in Greater Armenia (1243-1275)-Mongol-Armenian military cooperation, stage I : the conquest of the Middle East (1258-1260)-The Il-Khans' wars and Mongol-Armenian collaboration, stage II (1260-1265)-Mongol-Armenian cooperation, stage III (1265-1295)-The end of Mongol-Armenian relations (1295-1335)