Neo-neo heads the latest post in her 'A mind is a difficult thing to change' series with this quotation which she ascribes to Trotsky:
You may not be interested in war, but war is interested in you.So far as I'm aware, Trotsky is not the source of it. That it is sometimes attributed to him is due, I imagine, to the following passage from Michael Walzer - though Walzer is perfectly clear that he is adapting some words of Trotsky's that aren't about war but about something else:
War [Walzer writes]... is best described by paraphrasing Trotsky's aphorism about the dialectic: "You may not be interested in war, but war is interested in you." [My italics.]