Starts a war to stop Yemen helping Palestine.

Creates a situation where insurers refuse to insure ships passing Yemen.

Consolidates the very thing that Ansarallah was trying to achieve.

Cries in lost profits.

Civil unrest at the rate of inflation.

Cries in collapsing empire.

Looks like Yemen still has a little bit of that old communist-bring-your-enemies-to-their-knees left in it yet.