Ramadi gave a boost to the embattled Prime Minister, Haider al-Abadi.He has scant support even from his own Shia Daawa party, and is seen across the board by Sunni, Shia and Kurdish politicians as weak, hesitant, lacking in leadership and unable to stand up to the militias.But there was a down-side to the Ramadi victory too: heavy destruction, and the displacement of the entire population.