This is why the near-term outcome is more likely to be a prolonged contest than a rapid march on Sanaa. Fighting may intensify on several fronts, Houthi missiles and drones may continue to pressure Saudi Arabia, naval deployments may grow, and sanctions may expand without producing a decisive result.

This could, of course, change rapidly if the Houthis manage to solidify their gains along the Red Sea, which would create a lasting threat to shipping.

https://www.openstreetmap.org/?mlat=15.343&mlon=44.203#map=8%2F15.343%2F44.203&layers=C