Answer:
Political union
Explanation:
Political Union is a union created when member countries of an economic and monetary union work closely with one another to arrive at common defense and foreign policies and behave as a single country.
Political union is when smaller states come together to form one state.
Forms of a political union includes:
Incorporating union
Incorporating annexation
Federal (or confederal ) union
Federative annexation
Mixed unions
I hope my answer helps you.