1. The historian explained the origin of the federation of tribes.
这位历史学家解释了这个部落联盟的起源。

2. A strong federation of tribes was formed to defend the territory.
为了保卫领土，形成了一个强大的部落联盟。

A: Do you know how the federation of tribes operates?
A：你知道这个部落联盟是如何运作的吗？

B: They make decisions through a council of elders.
B：他们通过长老会议来做出决策。

1) 部落联盟

2) 多个部落的联合体

3) 部落联邦

1. 由多个部落组成的联合组织

e.g. The federation of tribes controlled the valley.
这个部落联盟控制着这片山谷。

noun phrase

1. An organized group or political entity formed by the union of several tribes.

Synonym: tribal confederation