Answer:
spreaded quickly and is highly fatal
Explanation:
This event would be Germany's sinking of an American vessel despite both nations being at a neutral diplomatic standpoint at the time. When the Germans sank the American vessel, without any actual reason to do so, this drastically coldened the relationship between the US and Germany.
Were you trying to ask a question or where you answering someone<span />
When I read this I think it is saying "That the actions of men is the best why to understand their way of thinking. "