The armed conflict between the Shia Houthis rebels of Ansar Allah militia and the Salafist al-Islah forces and the al-Qaeda insurgency occurred due to the lack of central government during the transitional process in Yemen .
The total absence of central goverment during this transitional process propitiated the scalation of the several clashes on-going in the country , like the armed conflict between the Shia Houthis rebels of Ansar Allah militia and the Salafist al-Islah forces , as well as the al-Qaeda insurgency .