Included Empire Relationship (manual)

At the time this page was created, this is the ultimate empire relationship. It grants you all the benefits of the connected relationships (and, consequently, the known relationship).

However, instead of costing force, it increases your available force rather than decreasing it. The boost to trade is far greater than the connected relationship.

Most importantly, this relationship increases your empire's total land as well as increasing its ability to purchase land-increasing investments.