you need light infantry, mortars/artillery, anti-armor, air-defense, tactical ballistic missiles, psychological warfare, engineers, and military intelligence apparatusi.
light infantry are highly trained and mature individual riflemen who can construct camouflaged fighting positions, deliver accurate fire out to 500 meters, patrol urban and rural area on foot, interact with your locals, and perform reconnaissance, forward obersvation, and direct fire weapons to defend territory against selected targets. infantry are the teeth and claws of any well-designed fighting force, and light infantry are trained well enough to perform independently and act in roles where they can stop a larger force with few to no casualties. see the dni archive at the project on government oversight for more details.
indirect fire weapons such as mortars and artillery allow forces that have knowledge of enemy locations to bombard them with heavier weapons. this also enables state of the art warfare techniques such as combined arms, stormtrooper assault, and indirect fire ambush.
anti-armor assets prevent your enemy from loading up into armored vehicles and driving past your riflemen and through your artillery barrage into your rear aniping out your supply lines and command post. engineers also perform this function through mines and obstacles.
air defense prevent the enemy from harassing you with aircraft all the time and dropping troops in your rear.
tactical ballistic missiles provide the long range punch so that your special reconnaissance and espionage assets can knock out high value targets before they get close.
psyops counter the information warfare campaigns of the enemy with your own battlefield rhetoric, because ideas are more powerful than violence.
engineers construct obstacles, fortifications, and supply lines. they also deal with mines and explosives.
military intelligence does intelligence collection, analysis, dissemination, and deniable operations.
you will note that no aircraft or armored vehicles are required. air defense and tactical ballistic missiles are the expensive ones. artillery is kind of expensive. engineers will probably need front end loaders and stuff, for tank traps. the point is that each countermeasure is an order of magnitude less expensive for the same effect. this even applies to psyop because, duh, austrians are the best at argumentation.
