The most powerful war machine in the history of Rifts Earth is poised to crush their enemies beneath a fist of military grade alloy, and many see this as a smoke screen or a bluff, but those in the know, know it is not.  Emperor Prosek means to unite the entire mid-West beneath his armored boots, and woe to those who do not fit in with his vision.
  There is never just one easy answer to the issue of whose side to be on, though.  Now please keep in mine, I do not own or have seen any books after CS Navy had come out.

Links:
Fighting against a War Machine-Fighting with the Forces of Magic
To Save Humanity-Fighting With the CS
Both Sides Against the Middle-Playing both sides of the fence
One for All and All for One-Aligned with no-one, and out for cash
The Grinning Skull of War-Being part of or owning a Merc Company

Useful Stuff For GM's-Everything from Standard Troop Bonuses to Weapon Add-Ons