Question

When a state seeks to acquire the neighboring territory that is home to ethnically similar people and territory on the other side of its international border by appealing to a concentrated group, this action is termed _____________________?

Answer 1

Irredentism

"Irredentism is any political or popular movement that seeks to claim/reclaim and occupy a land that the movement's members consider to be a "lost" territory from their nation's past. Wikipedia"