NEW : Agreement asks `` temporary assistance '' of U.S. troops , but limits their role . NEW : Pact gives Iraq jurisdiction over U.S. troops `` for grave premeditated felonies '' NEW : U.S. ambassador , military , welcome Iraq 's passage of agreements . *
NEW : Agreement asks `` temporary assistance '' of U.S. troops , but limits their role . NEW : Pact gives Iraq jurisdiction over U.S. troops `` for grave premeditated felonies '' NEW : U.S. ambassador , military , welcome Iraq 's passage of agreements . Security pact sets June deadline for U.S. combat troops to leave Iraqi cities , towns .