Militia and troops.

[Ragnarok-X]

Barnacle Bill said:
Did the entire population of every country invaded by Germany in WWII turn out in mass to face the German army in open battle with whatever they could scrape up? What's the difference in getting invaded by aliens and getting invaded by Germans. Unless the aliens are bent on extermination rather than conquest, not much. People will do what they did then - whatever the occupation forces tell them, at least as long as the occupation troops are looking. And, no, there won't be enough militarily useful weaponry if there isn't any around - like in just about any European country today. Early in WWII, there was a major program to get American civilians to donate hunting weapons to be shipped to the UK to arm the Home Guard - and if Sea Lion had come out of the blue in 1940 there wouldn't have been time for that.

Uh-oh, you miss something very important here. HUMANDS did fight HUMANS. Because humans have emotions, they believe and know each other.
However, should your country be invaded by giant bugs, or giant lizards, or giant-something with no reference to earth at all, i dont think your 25 % would work quite well.

Heck, even human principles, or ethics like morale, life/death and culture could potentially have a totally different, or no meaning at all to something which is not human. No one will adopt to that.
What about those Xing Hive Insects from SEIV. Do you believe you, or anyone else could adopt to thier lifestyle ?

Unfortunally i cant bring a good example, because their has never been a situation of comparable value in history.