Dear Neville,
Bnai Akiva in pre war Europe. Are you sure? It started in Palestine in 1929.
I know about the Zionist groups that the kids used to go to. But they weren’t schools. They were weekend get togethers and the like.
I’m not taking a side on this. The Chofetz Chaim had more than just Zionism to deal with. It’s hard to tell what he was talking about in each letter.