In order to carry out the provisions of sections 2-14 through 2-16 of this Code, the county executive may provide and furnish arms and ammunition to the citizens of the County or to the militia of the state, and may provide and furnish any or all persons engaged in public defense within the county with protective armor and such other equipment and supplies and also purchase, rent, hire and maintain lands, buildings, and equipment as may be considered to be necessary and proper. The county executive may engage the service of persons charged with assisting in public defense and may, with the approval of the council, fix the compensation of such persons, including the payment for services heretofore rendered in connection with the civilian defense activities of the county, and may do all other things needful and necessary to protect and safeguard the people and property within the county from actual or threatened armed invasion or insurrection, and may alleviate their suffering resulting from fire, flood, disaster or epidemic of disease, or other such emergencies. The county executive is authorized to adopt regulations under method (2) of section 2A-15 of this Code to protect the citizens of the county during blackouts, practice air raid alarms, air raids and invasion. All acts done and all money expended by the county for such purposes, either heretofore or hereafter, including the purchase of equipment for civilian defense organization and maintenance, the employment of administrative and technical aid in the interest of civilian defense, the purchase of medical supplies for casualty stations, and the purchase of arms, ammunition and providing and furnishing of telephone service and other service and supplies are hereby ratified and confirmed as just and lawful acts of the county. (Mont. Co. Code 1965, § 2-20; 1943, ch. 75, § 2; 1970 L.M.C., ch. 9, § 2; 1984 L.M.C., ch. 24, § 4; 1984 L.M.C., ch. 27, § 5.)