interdependence
//ˌɪntərdiˈpendəns//
Noun
1
The state of being mutually reliant on each other; a relationship in which each party depends on the others for support, success, or survival.
The interdependence between the two countries has strengthened their economic ties.
2
A condition in economics or politics where nations or groups are connected through trade, resources, or shared interests, making them dependent on one another.
The interdependence between the two countries has grown stronger through increased trade agreements.