Hydrological, or direct, effects of doing this include reduction in downstream river flow, increased evaporation in the irrigated area, increased level in the water table as groundwater recharge in the area is increased and flow increased in the irrigated area.
Origins: This item about the elimination of imminent danger pay (also known as combat pay or hostile fire pay) for all U.S. military personnel save for those who are being shot at includes some truth and a good deal of mischaracterization.
1 Family Separation Allowance (FSA) is paid during extended periods of family separation. The current amount of FSA is $250 per month.  Imminent Danger Pay is for service members serving within an officially declared hostile fire/imminent danger zone. The current rate is $225 per month.