Complex sentence: The successors of the Earth government along with the space colonies Side 2, Side 3, Side 5 and Side 7 form the Settlement Nations while the Lunar government and the space colonies Side 1 and Side 4 join together under the Settlement of Free Alliance.
Split into simpler sentences: The successors of the Earth government along with the space colonies Side 2, Side 3, Side 5 and Side 7 form the Settlement Nations. While the Lunar government and the space colonies Side 1 and Side 4 join together under the Settlement of Free Alliance.