OK, so: one of the things I can't understand so far in this game is attrition (and the supply limit too). I mean I've read the Wiki for it, but probably because I am not a native English speaker can't get it that got. Btw, if you can provide some example for each one of the questions would be awesome.
1) What is actually attrition?
2) What is the supply limit?
3) What is the connection between them, if any?
4) What happens if I go over them? I mean something concrete, what penalties does it lead to?