Sorry, you misunderstand me -- I'm asking what in that title states that it their aerial dogfights/combat training etc was against "one another"?
Emphasis on the "one another" aka "J-20 vs J-20" part.
For the record, I'm sure that J-20s have conducted combat training and ACT against J-20s already by now. It's just that I'm wondering where in the title or the post does yankee state it?
According to Yankee, the aircraft taking part in aerial combat are from the Wang Hai Brigade in Wuhu. I am not aware of other types stationed there.