In a book called Branding Terror, Francesco Trivini Bellini and former United Nations counterterrorism analyst Artur Beifuss compiled the logos and brand identities of terrorist organisations "from al-Qaeda to the Real IRA" and analysed them as they would any logo. It's fascinating to approach the identity of the terrorists from a graphic design perspective.
Branding Terror says:
Each of the 60-plus entries contains a concise description of the group's ideology, leadership and modus operandi, and a brief timeline of events. The group's branding — the symbolism, colours and typography of its logo and flag — is then analysed in detail.
Here's a sample of some of the logos in the book, which you can buy here.
Babbar Khalsa International logo