You are assigned to try to deal with the "peaceful" side of conquest, making deals with locals to integrate them into your patron state. The locals are a species of intelligent humanoids, who are currently living in a basically hunter-gatherer state of existence, without domesticated animals. The particular region of this planet that you are assigned to is basically a thick jungle. Over several months, you come to the conclusion that their forcible integration is just wrong, and covertly align yourself with the natives.
Your assets are:
- A significant number of natives (several thousand warriors). They vary in experience from quite green (only experienced in hunting) to highly decorated (over a century of intertribal conflict), though they are all ultimately not professional soldiers. They have a reproductive cycle (birth -> sexual maturity) of about six Earth years, so you can get new ones fairly quickly.
- Thorough knowledge of local terrain.
- Ability to rely on other tribes to pass intelligence to you.
- Access to the internal intelligence and military movements of troops in your area (until they figure out you're a traitor, anyway).
- Knowledge of modern/future modern warfare tactics.
- Direct access to some small arms (guns, grenades) via trade with other tribes/the black market. Slightly more than enough to equip everyone, but without enough ammo to last many firefights.
- Tanks, bombers, jets, artillery, military jeeps, etc.
- Huge numbers of troops in total (tens of millions in total, including noncombat personnel).
- Some limited intelligence about the locals.
- Extremely dangerous special forces troops (cybernetic supersoldiers, basically), in very small quantities (numbering in the tens of thousands for conquest of a planet of hundreds of millions).
What's your plan?