Last round of hints. Might as well get around to them now.
#5
-A small neutral nation rich in natural resources must defend itself from an invasion by an imperial alliance
#4
-Will you end the age, or perpetuate the cycle for a little longer?
#3
-32 years have passed since contact with Earth was lost
#2
-Every 108 years
#1
-The play at the start is just a ruse