
Submarine History
"Underwater Test."I think this title is very interesting. The reason why it is called "Underwater Test."I'll say it is very important to pass the difficult test to be a member for this job.
This job is very dangerous, have to get ready for a life-and death emergency.For the situation,
all the crew have to trust, respect and understand each other. To depend on each other, they need to make sure that the person is okay and can trust for the emergency.