Conversation

George Orwell's ideas expressed in _Nineteen Eighty Four_ about sudden swings in political/military allegiances come from his experiences in the Spanish Civil War.

https://www.orwellfoundation.com/the-orwell-foundation/orwell/essays-and-other-works/looking-back-on-the-spanish-war/

"And the Left intelligentsia made their swing-over from ‘War is hell’ to ‘War is glorious’ not only with no sense of incongruity but almost without any intervening stage. Later the bulk of them were to make other transitions equally violent. "