Complex sentence: Local police declined to render mutual aid and the standoff lasted until a convoy of more neutral officers raced from Superior, Wisconsin, almost 100 miles (160 km) distant, and fought their way through the crowd to rescue the fishers and game wardens.
Split into simpler sentences: Local police declined to render mutual aid and the standoff lasted until a convoy of more neutral officers raced from Superior, Wisconsin, almost 100 miles (160 km) distant. They made their way through the crowd to rescue the fishers and game wardens.