🇺🇸🇾🇪🇮🇷There are different options for how "America is done with the Houthis".
For example the US can achieve nothing good strategically, spend untold amount of dollars and sail away.
But I assume you mean that the US will destroy the Houthis as a regional threat. In my opinion, this requires:
1) Extremely high precision mass-scale bombing campaign, meaning the US has to try much better than it is doing now.
2) A massive ground campaign against the Houthis. You probably want to get everyone you can in Yemen to do this, and yes, there are plenty of people willing. But to be sure of success, they'll need excellent coordination with the US Air Force and at least some American boots on the ground.
3) A complete blockade of the Houthi supply route from Iran. This would require the use of multiple assets in the form of special vessels such as US Coast Guard Cutters.
Alternatively, you can try to destroy Iran itself.
With all that said, you'll still need several years of fighting to defeat the Houthis, in the best and most optimistic scenario. Keep in mind that it still won't be a *total* victory, it will be an Afghanistan-style victory. That is, there will be fighting cells in the mountains that will wage guerrilla warfare and prepare to take revenge.
And Saudi Arabia understands this better than anyone else, they already have experience... So I don't think they discussed dividing after-war Yemen with Iran.
It is more likely that they were negotiating the current situation in Yemen and how to prevent its escalation, and were drawing lines of their interests.
@medmannews