As used in sections 3.93 to 3.96, "attack" means an action or series of actions taken by an enemy of the United States resulting in substantial damage or injury to persons or property in this state through sabotage, bombs, missiles, shellfire, or atomic, radiological, chemical, bacteriological, or biological means.
Minn. Stat. § 3.93
1961 c 572 s 1; 1988 c 469 art 1 s 1