what I found is not a single brand or an anti-war logo. This logo was originally the logo of the British nuclear disarmament campaign organization, Campaign for Nuclear Disarmament (CND), which consists of the naval flag signals "n" and "d", which is just the first letter of the English word representing nuclear disarmament. Although opponents think it "looks a little evil, like a broken cross", and some people think it looks like a Mercedes-Benz trademark, these can't stop its spread. Stephen Bailey, a famous British design critic, commented: "In the history of symbols, the anti-war logo is enough to compete with Coca-Cola's trademark and Nike's' hook'. The similarity of these three signs is that they all promote a belief system. The difference is that the anti-war signs have never helped anyone earn a penny, but they are likely to save many lives. "

-from Baidu Encyclopedia.