It's not a stupid question at all!! All questions are great questions if they help you or someone!
There was a post some years ago that described how to write a legal studies thesis:
https://atarnotes.com/forum/index.php?topic=164897.0Before writing anything, I'd mentally organise what evidence/body paragraphs I would write and set my stance. This would help influence my thesis --> are values and ethical standards effective/ineffective in promoting peace and resolving conflict? In which ways (via international, domestic/regional or media responses, etc) are such values/standards effective? In your thesis, you could definitely say that it peace and conflict resolution is promoted to a varied extent, and within your body paragraphs to analyse and make a judgement individually on what extent.
For your world order question, possible body paragraphs/evidence would be to look at how:
* The changing values/standards influenced the creation of the UN, the need for world order and other international treaties (bilateral/multilateral) --> international responses
* The changing values/standards are influencing domestic/regional responses (law reform, ratification of conventions/treaties/other international documents, the AFP assisting Jakarta (as an example of attempts to promote peace and resolving conflict regionally)) --> regional responses/Australia's involvement domestically
* The changing values/standards in media (e.g. Forbes' article about the ICC needing 12 years and $1 million to convict Thomas Lubanga Dyilo --> this would influence public opinion on the ICC's effectiveness, any media reports/protests that are for/against certain actions by nation states) and if such influential reports have made an impact on future decisions of the state (e.g. Brexit is what you could definitely use for an example of media and values/standards of society!)
* The changing values/standards in NGOs (the need for ICRC's development in promoting peace and resolving conflict safely --> conduct of hostilities)
If you were to try and memorise a thesis statement for each theme/challenge, I would try and connect each theme/challenge to a chapter/topic in your textbook (e.g. influence of values/standards in relation to the R2P doctrine) and make a judgement on how effective that theme and challenge is in relation to the connected topic/chapter. If you want to write about multiple different topics (e.g. R2P, conduct of hostilities, the nuclear threat, etc) (and they have varying effects) in one essay rather than focusing on one, then you can say in your thesis that it's effective to a varied extent rather than siding solely with one level of effectiveness.
I hope that spiel made sense; that's all I can think of off the top of my head, and I hope this helps!! Good luck!!