ooh i got it now! i was confused because i thought soldiers would attack directly to the skeletons, instead of having to pick them up and leave them in other tile like the resources.
the game’s concept is interesting but i found it kinda difficult that the skeletons attack in one single group, making trying to counterattack difficult if you have fewer or not very strong soldiers. maybe if the skeletons were dispersed attacking various tiles, it would be easier to control and more manageable.