Is it ever morally obligatory to break a promise

Topic: Is it ever moral to break a promise? A rational analysis and conclusion.

Thread: The Reading & Study materials this module/week discuss the complex issue of poverty, and the moral imperative of promise-keeping is mentioned several times. After reviewing the Reading & Study materials, compose a 500-600 word argument that is objective, carefully-constructed, and free of emotion (and hence it should not contain any exclamation points) in support of your opinion on each of the following questions.

Why is promise-keeping morally important?
Is it ever morally permissible to break a promise?
If you answer “yes” to #2, then what are the conditions that render promise-breaking morally acceptable?
If you answer “no” to #2, then explain why you believe it is never permissible. How would you handle difficult scenarios wherein someone has made a promise the keeping of which would have significant undesirable consequences?
Is it ever morally obligatory to break a promise?
If you answer “yes” to #5, what are the conditions that render promise-breaking morally obligatory?
Be sure to carefully define your terms. You are encouraged to support your position with rational arguments, fitting examples, and expert sources. Any quotes or information used from sources other than yourself must be cited using footnotes in current Turabian format and will not count towards the total word count.

You will be penalized for falling short or exceeding the word count. This is a university-level writing assignment and therefore it must be carefully proofread, free of grammar, spelling, and punctuation errors. Do not use slang, emoticons, or abbreviations (as if you are texting or sending an email to a friend).