omar al salab is there. the prime minister begins the new job with much of the country in turmoil. how does he sort out the disarray? what are his priorities? >> reporter: well he's facing a daunting task and a very tough challenge. he needs to form a government that pleases all the political and military factions in this country and then he will be sworn in. he faces big difficulties keeping this country together. now, the prime minister, the new prime minister chalid albaha, was chosen by the prime minister under the peace deals brokered by the u.n. and calls on the new government, to please the houthis and other political parties. including the party of the former presidential. now, the big question here is that the houthis made big military gains in the last week. can they sustain those gains? now it depends it nails down really to the alliance between the houthis on the one hand and the forces loyal to former president. in terms of military might, the houthi fighters estimated to be anywhere from 15,000 up to 50,000 fighters they have all sort of weapons, conventional weapons