<span>A wildcat strike is a strike action undertaken by
unionized workers without union leadership's authorization, support, or
approval; this is sometimes termed an unofficial industrial. Thus your answer is 'a strike not approved by a union'.</span>
Some flu victims had no H. influenzae in their lungs.
Portugal with arrival of Columbus in 1492
One method,if my understanding is correct, is to attack by surpirse or to kill as many people as possible.
By doing that, the killing of numerous/millions of people, usually end on on planes, buildings... That type of stuff.
They usually do bombing of large areas.
~Hope this helped :)