Saw a school production of Oh, What a Lovely War! which was quite interesting. The stage musical is as old as I am, so a bit dodgy and embarrassing, but still standing. I wasn't aware of the piece beforehand, but apparently it was very popular in the 60s (like me) and there was a film version directed by Richard Attenborough with an impossibly stellar cast.
It's World War I treated with equal measures of reportage, satire, and surrealism. Which may be what the subject matter deserves. For me, the serious and surreal parts worked better than the jokes which were mainly based on nationality stereotyping.
Most of all, I admire the energy of all people involved. Getting 200 kids to act in a coordinated way that is even vaguely recognisable as a play would look like an impossible task to me ...
PS a couple of years ago they played Red Demon by Hideki Noda.