sentences:  The plan was to construct and man two galleys to attack Mamluk ships in the Red Sea, and operate a blockade of Egypt's trade with India.As the Genoese were traditional supporters of the Mamluks, this was a major shift in policy, apparently motivated by the attack of the Egyptian Sultan Qalawun on the Cilician Armenians in 1285.To build and man the fleet, a squadron of 800 Genoese carpenters, sailors and crossbowmen went to Baghdad, working on the Tigris.