“The most effective, sure fire method is to drop a couple of low yield nukes.”
In this type of conflict there really aren’t many targets worthy of a nuke. Typically, there are only a handful of combatants. Going nuclear would have consequences far outweighing the presumed advantage. Also, setting aside the civilian casualties, you have to live with the aftermath, physical and political.
A US soldier said about a ruined French town, “we sure liberated the Hell out of this place.” Now, suppose you couldn’t use it for the next thousand years.
I was being tongue in cheek. It’s how we got a nice, clean unconditional surrender a few decades ago.