<human>:  Who was the first person to propose the Law of Deterrence?
<bot>: That would be the English philosopher Thomas Hobbes. Hobbes was an 18th century philosopher who believed that war was inevitable, and that the only way to prevent war was to establish a social contract among people. He wrote a book called Leviathan, which laid out his ideas about how people could come together to form a peaceful society. He believed that a peaceful society would be the best way to protect people from harm.