The significance is the ability of Jesus to blend in with humans and to not assert his godliness but to be one with the world.
Explanation:
When Jesus walks with his disciples without being recognized it is a potent symbol that no matter what happens no matter how fallen the person could be Jesus would be walking with them and all they have to do is recognize.
It is a potent symbol of the faith and the humanity and divinity to the same time of Jesus.
He is human enough to blend in with them and humble enough to not assert his presence to his own disciples.
He is a companion as well as god in this symbolism.
In an attempt to prevent American interference in the Pacific war, Japan bombed Pearl Harbor, the US naval station in Hawaii, in a surprise attack on December 7, 1941.