Without a doubt, this split has taken place on Shi'sa and Sunni lines; with Tehran effectively controlling 4 capitals in the region, finally the GCC and AL have realised that Iranaian ambitions need to be blunted. The trick will be trying to keep the coalition together and focused on restoring the Hadi-led government in San'aa. However, the Iraninas won't take this lying down. Hisbollah will be spun up to attack Israeli interests (who will respond, predictably) undermining the will of the Sunni coalition. Erdogan, President of Turkey, has thrown his political weight behind the coalition; I'd watch your border if I were you Reccip.