P2p over IP is useless and failing to protect against DPI. Also natural disaster or war tend to impact infrastructure and cutting communication. Have a look at

P2p over IP is useless and failing to protect against DPI. Also natural disaster or war tend to impact infrastructure and cutting communication. Have a look at meshtastic real p2p chat out of band (Lora based) and ciphered. Cheap devices with the right firmware and you can setup fairly an infrastructure and chat p2p If you don’t own infrastructure you are in the hand of the owner.