The fight for freedom has been around for centuries.  Some have taken away this freedom, some have renewed it but all this comes from war.  These two books portray a war that, if our ways continue now, could happen.  Maybe there won't be aliens as the aggressors or the targets, it might just be different groups of humans, but as long as there is something to gain, the war will come.  Also, with the governments being corrupt and power-hungry, there's no doubt the war will come.