When the european union formed, nations began to create one unified education system. eliminate their home governments. cooperate on law enforcement. abolish many geographic boundaries.

"cooperate on law enforcement."

Explanation:

The European Union (EU) is a political community of law constituted under a sui generis regime of international organization created to foster and welcome the integration and common governance of the States and peoples of Europe. It is composed of twenty-eight European States and was established with the entry into force of the Treaty on European Union (TEU) on November 1, 1993.

The European Union has developed a legal and political system, the European Community, unique in the world, which is governed by complex internal operating mechanisms and procedures, which have been extended and evolved throughout its history until now, , a hybrid system of transnational government that is difficult to approve, combining elements that are close to multilateral cooperation, although strongly structured and institutionalized, with others of purely supranational vocation, both governed by a dynamic of very marked regional integration.