Nurses are focused solely on the welfare of the queen and her descendants.
For the queen, it is quite simple since they only feed the queen so that she can continue to lay eggs and live.
Eggs are a little more complicated to handle. They are first transported by the nurses to the nursery then they are fed until hatching.
Their role is extremely important, since they allow the colonnium to be maintained and enlarged.
Nurses know how to cope but they remain fragile. The enemy soldiers will only make one mouthful of them.
Nurses remain all their lives in the base (but you never know).