<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>
Slaves fled to Canada to gain freedom, so the Canadian population grew.
What do you need? please explain.
Although this depends somewhat on the war in question, in many cases a longterm cause of war is the growth of "nationalism" or a strong sense of pride in your country, since this generates an "us vs. them" mentality.