Wōniúguó zhēngfēng, bùguò shì fāngcùn zhī jiān de shì.
Snail kingdoms vying for supremacy — it's all a fight over an inch of ground.
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Echoes the 《庄子》 tale of two kingdoms on the left and right horns of a snail (触蛮之争) — a parable mocking the pettiness of territorial wars. Use to belittle a conflict as small-minded.