Is there such word or phrase in Englsih?

[NewHopeR]

A word or a phrase that refers to the behavior in which you are pretending to stop the fighting between Jack and John, yet you only prevent the attack from John. The result is that Jack can catch the oppotunity to beat John harder and John is unable to beat back.

[bhaisahab]

A word or a phrase that refers to the behavior in which you are pretending to stop the fighting between Jack and John, yet you only prevent the attack from John. The result is that Jack can catch the oppotunity to beat John harder and John is unable to beat back.

I can't think of any.