This Center for Army Lessons Learned (CALL) handbook assists company-, battalion-, and brigade-level officers and noncommissioned officers to effectively use money as a weapons system on the counterinsurgency (COIN) battlefield. Coalition money is defeating COIN targets without creating collateral damage, by motivating antigovernment forces to cease lethal and nonlethal operations, by creating and providing jobs along with other forms of financial assistance to the indigenous population, and by restoring or creating vital infrastructure. Money also funds other tools of war.