Trade
To trade it costs: A,) 2 economic levels per route per person. B.) a sea route clear of any enemies or a train connection. A trade route can be broken by an enemy. You get an economic boost every three turns for each partner. You can have a sea route without a navy, but you must have a coastline. You may go through a neighbor nation to get to another through train tracks if you have permission.
To trade it costs: A,) 2 economic levels per route per person. B.) a sea route clear of any enemies or a train connection. A trade route can be broken by an enemy. You get an economic boost every three turns for each partner. You can have a sea route without a navy, but you must have a coastline. You may go through a neighbor nation to get to another through train tracks if you have permission.