Complex sentence: The Popular Mobilization Forces are accused to accrue a power base in Iraq and to be the Iran's instrument to dominate Iraq; the main fears are that the permanent Milita would turn themselves in enforcers of Shiite domination.
Split into simpler sentences: The Popular Mobilization Forces are accused of accruing a power base in Iraq and of being Iran's instrument to dominate Iraq. The main fears are that the permanent milita would turn themselves into enforcers of Shiite domination.