Logistical, it is a nightmare to have military presence in the red sea from now on. Muslims and Arab countries are controlling the area up to the “Strait of Gibraltar”

There were plans to run a gas line from the Arab/Parisian Gulf to the Mediterranean running through Gaza. ( Israel anounce that a while back in the UN ) which could work for oil and gas however, for trade, if the US and UK decided to continue with force, they will have to deal with Somalia, Sudan, Egypt, Laybia, Tunisia, Algeria and Morocco.

Not necessary governments, but also resistance groups that now knows how effective this is.

I think the US and the UK should not waste time attacking Yemen unless if they plan to expand the wars further.