And the right way to do that, is by painting a bright "thou shalt not cross" line in the sand, and then enforcing it (if necessary) with overwhelming airborne superiority.
As opposed to a massive ground invasion and occupation, which has clearly been shown to be self-sacrificial and counterproductive.
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To respond in one place to the most common responses I'm getting:
It's fairly obvious in day-to-day life that and military history that (1) you don't appease or tolerate bullies; (2) you don't try to "reason" with the enemy. What I'm saying is a straightforward application of this, and what you're all saying is a straightforward denial of it.