I believe it is persuasive. You're trying to get people to help preserve the mountains, da? That essay is trying to persuade them
Answer:
Because of this, the only way to understand Sino- European relations in the twenty-first century is to look into their history
If you mean what side does he identify with, the answer is neither. The prince is a neutral party.
I dont see the stanza but maybe to signal its past tense.