Trade routes

[Doug-Thompson]

Watchtowers on coasts and islands are great for watching out for pirates, and invasion fleets. Very helpful. For instance, put one watchtower at the west end of Cyprus, a few in northern Egypt and north Africa, one on Crete (you can't build on the mountainous east end, and Rhodes has no space left either due to the harbor and the city), one or two in the Acre area and one on the south shore of Asia Minor. You'll see the whole Eastern half of the Mediterranean except for one dark spot, and that's where you leave your fleet.

Also, do spies extend the vision range of fleets? They seem to.