The details that Ban Ki-moon uses to support his point of view and the purpose of the speech are the sentences that show evidence that his point of view is correct.
Therefore, to find the supporting details of the speech, you must read the entire speech, identify the author's point of view, and look for the evidence that supports that point of view.
This question is incomplete, as you did not show the speech to which it refers. In this case, I can't give you a specific answer, but I hope the above information will help you find your answer.
More information about textual evidence at the link:
https://brainly.com/question/375033