Complex sentence: The 196th conducted Operation Cedar Falls, Gadsden, Lancaster, Operation Junction City, Benton, and Operation Attleboro (War Zone C of Tay Ninh Province), where it turned into a major action after a large enemy base camp was found on 19 October 1966.
Split into simpler sentences: The 196th conducted Operation Cedar Falls, Gadsden, Lancaster, Junction City, Benton, and Attleboro (in War Zone C of Tay Ninh Province). Attleboro turned into a major action after a large enemy base camp was found on 19 October 1966.