I can't say it much better than this:
Read the whole thing at the link in the title.
At the end of the 1954 film "The Bridges at Toko-Ri," based on the Korean War novel by James Michener, the crusty old captain of an American aircraft carrier, watching his pilots take off for another mission from which not all would return, asks rhetorically, "Where do we get such men?"
Where indeed? Thank you all.