Verbally, it might make more sense to create a new "Trade Route" agreement and leave the right of passage at the Open Borders.
Sounds like an interesting idea, although it might just mean no-one signing Open Borders, just trade agreements; probably they are linked to force a risk onto the reward.
Sounds like an interesting idea, although it might just mean no-one signing Open Borders, just trade agreements; probably they are linked to force a risk onto the reward.