This is a famous phrase from the Battle of Tsushima in the Russo-Japanese war. It is used in modern times such as by Shinzo Abe after he called a snap election a couple of years ago.
You can research it and get more examples I am sure.
Anyway, I am having difficulty in finding the original Japanese. I can guess it would be something like
but I bet it is more poetic than my child's Japanese :)
Does anybody know it?