Answer:
In English grammar, sentence structure is the arrangement of words, phrases, and clauses in a sentence. The grammatical function or meaning of a sentence is dependent on this structural organization, which is also called syntax or syntactic structure
The purpose of the first paragraph of the Iroquois Constitution is let the readers and all people understand what their goal is. The goal if the constitution is peace. Appointing 5 leaders of the 5 nations great Lords as councils of the constitution.
The rhetorical device used in this sentence is repetition.
Hope this helps =)