Boot To The Head:Yeah, space relieves nukes of some of their punch, no emp, fallout isn't a factor, no buildings and people to destroy, sheilded enemy,
That's why I wouldn't have a problem with them there. The UNSC use them freqeuntly in ship to ship engagements in the books. It's on the ground you need to take these into acount.
Just look at the NOVA, their most powerful nuke, If you had access to that you wouldn't just kill yourself, but the entire planet, and any ships overhead.
Just look what happened to Joyous exhaultation.
'For eons I have watched as you have misinterpreted. This is not Reclaimation, this is reclaimer'- Mendicant Bias
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Check out my second fan-fic: Operation Overwatch