I think this is the smartest route.

Thanks for the advice

If their troops are very concentrated then nuke the troops, the equipment loss will be detrimental. If they have 2000 planes on one airbase, boom. I've reduced Britain's airforce from 20k to 6k in one day like this. I won't recommend nuking the hubs, since when you take them they become your problem to fix and you need them to advance.

Nuke supply hubs, push and gain land. Nuke troops and they can just replace them

Doctrinal debate for all of my armchair generals out there:

Which is better? Nuking supply hubs, or outright nuking enemy forces? I have 13 and counting, about to enter WWIII with the Ruskies. 

I will follow the prevailing advice.

Nukes and the New Meta