Complex sentence: The mines are programmed to target certain energy frequencies, including Goa'uld weapons fire, making their world a perfect neutral ground for Apophis and Heru-ur to meet and discuss an alliance.
Split into simpler sentences: The mines are programmed to target certain energy frequencies, including Goa'uld weapons fire. This made their world a perfect neutral ground for Apophis and Heru-ur to meet and discuss an alliance.