What person is best associated with the search for the northwest passage?

This cartoon appeared in 1916. the topic of the cartoon isa)the reason for the start of world war i. b)the success of us submarines in world war i. c)the military alliance between germany and mexico. d)the attitude in the us towards submarine warfare in world 

To your knowledge had the usa ever invaded canada after the war of 1812

Why would someone who is studying the history or culture of this time. find this text interesting important or useful?