Question

britain left the european union (eu) in 2016 to be a more independent nation.
mitarism
alliances
imperialism
nationalism

Explanation:

The idea of Britain leaving the EU to be more independent reflects a focus on national self - determination and interests, which is characteristic of nationalism. Militarism pertains to a focus on military power and aggression, alliances are about partnerships between countries, and imperialism is about one country extending power over others.

Answer:

Nationalism