When the Houthis attack Saudi Arabia, the consequences quickly extend to global interests in energy, trade and aviation. The first price is paid by civilians, whose lives and safety are put at risk. The repercussions then reach economies and societies far removed from the attacks themselves. Treating this as a Saudi problem or a regional dispute understates a threat to the foundations of international security, leaving the world to pay for its failure to confront it. Saudi Arabia sits at the hea
