3-74. Sustainment activities during stability facilitate the establishment of civil security, civil control, restoration of essential services, support to governance, and support to economic and infrastructure development. For example, U.S. sustainment forces provide the essential food, water, shelter, and medical support necessary to sustain a host-nation population until local civil services are restored. U.S. sustainment forces may also assist a host nation with instituting the rule of law in order to eliminate the inequalities in the administration of the law that contribute to instability. U.S. sustainment forces may also provide sustainment support to stability in construction activities to build infrastructure for transportation, distribution, warehousing, and power generation. U.S. forces can plan and execute many sustainment actions via operational contract support to augment or substitute for U.S. logistic and engineering forces. Finally, U.S. sustainment forces may train, advise, and assist teams that build host-nation capacity by providing training for sustainment operations.