Context: There is a video showing protesters in a demo. At some point they became uncontrollable and began fighting amongst themselves. The video shows how the protesters tangled with each other in the demo. The video shows how the protesters fought each other in the demo. According to the Cambridge English Dictionary, tangle with somebody means to become involved with someone, usually by arguing or fighting with them. Is "tangle with" synonymous with "fight" in the sentence above? Are they interchangeable?