The principal target was the Ottoman city of Smyrna Ganteaume ordered to prey on merchant shipping sailing for European destinations and in particular a large convoy due to sail to Britain .
The Ottoman city of Smyrna is the most significant trading port of the region .
The principal target was the Ottoman city of Smyrna , the most significant trading port of the region , Ganteaume ordered to prey on merchant shipping sailing for European destinations and in particular a large convoy due to sail to Britain .