I was going through some of my old books and I found one that I very particularly care for; Faithful Elephants. Probably the most touching and greatest short story I've ever read, it's only two-three pages and I would highly recommend it. It's a children's book, I was wondering if anyone else has read or heard of it?

During the last stage of World War II, Tokyo was often attacked from the air. At the city zoo, the keepers, with tears in their eyes, had to kill many of the animals for fear that they would run amuck in the town if the zoo was bombed directly. Faithful Elephants describes how three elephants died at the Ueno Zoo in Tokyo at that time.
http://gyanpedia.in/tft/Resources/books/fe.pdf