I would exert political pressure on that ally (Israel) to knock it off in Gaza. They have more than retaliated for Oct 7 and gone orders of magnitude past that. The stated position of the houthis is that they are attacking Israeli ships "in support of their muslim brethren in gaza." Which I actually believe because so far the only time the houthis have stopped shooting was during the short lived Israeli-Palestinian cease-fire. I would immediately stop any talks of a Gaza riviera developed by us and Israel. The gaza riviera is a bad idea of biblical proportions that will have Israel cemented as a permanent pariah state, with us as the enablers.
Of course all of this assumes im king for a day and not completely beholden to AIPAC like the current admin and most of the left are.
edit: The other biggest problem with the gaza riviera plan is that it's the stumbling block preventing any meaningful negotiations from happening to get back the remaining hostages. Think about it from the perspective of hamas. Once you give up the hostages you've given up your last card, then israel is free to completely bulldoze the place. So what incentive do you have to negotiate a cease fire and return hostages if the only thing looming on the horizon afterward is complete displacement?