4-42. Support involves establishing, reinforcing, or setting the conditions necessary for the instruments of national power of the host-nation government to function effectively; coordinating and cooperating closely with host-nation civilian agencies; and assisting aid organizations as necessary to secure humanitarian access to vulnerable populations. Support is vital to a comprehensive approach to stability operations. The military instrument of national power brings unique expeditionary and campaign capabilities to stability operations. These capabilities enable the military force to address the immediate needs of the host nation and local populace quickly. In extreme circumstances, support may require committing considerable resources for a protracted period. However, easing the burden of support on military forces requires enabling civilian agencies and organizations to fulfill their respective roles. Typically, commanders ease the burden by combining the effects of the stability mechanisms compel, control, and influence to reestablish security and control; restoring essential civil services to the local populace; and helping to secure humanitarian access necessary for aid organizations to function effectively.