CNN analysts assess what Basra fighting says about Iraq 's future . Michael Ware : Iran fosters clashes among rival Shiite factions . The United Nations has warned that the conflict could spread to neighboring countries and destabilize Iraq's fragile political system. Crisis is opportunity for central government to stand up . Sheppard : Breakdown could lead to political chaos , loss of gains from surge .
CNN analysts assess what Basra fighting says about Iraq 's future . Michael Ware : Iran fosters clashes among rival Shiite factions . Michael Holmes : Crisis is opportunity for central government to stand up . Sheppard : Breakdown could lead to political chaos , loss of gains from surge .