As I said before, HSM uses the sympathy card. How shameful it is, it works. He has cobbles together a coalition, got the US too give $100 million worth of support and has shown the blight that is Ethiopia.
More important than all this, Abiye is a mad man. Fast majority of leaders work on a cost-benefit anylisis. Abiye seems to have a god-complex that wants to expand his neo-Abyssinian Empire. Do not forgot it was Farmaajo that tightend relations with Abiye under his administration.
Honestly think at this point a military alliance with Eritrea will be necessary. Simple to deter Ethiopia from invading either nation as that would auto-results in a double fronted war. Problem is, Somalia is more of liability than anything else.
It all comes back to Al Shabaab. At this point I'd be very much in favour of joint agremeent, very similar as the ones the chinese communist and nationalist had during the Japanese invasion. Every FMS, FGS and Shabaab declaring that any foreign will have a joint response.
Shabaab will claim, not wholely falsely, that we are already under foreign occupation. The new multilateral force will be a problem in the government's legitimacy. Government should show some balls and have the foreign troops not be a part.