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.
One is a command billet and the other is an MOS support billet. A command billet will take precedence if all other factors are equal (time in grade, time in service). Most Gunnery Sergeant promotees are evaluated against their career track and asked what they would like to be.