Under Rule 13(a) of the Federal Rules of Civil Procedure (FRCP), entitled "Compulsory Counterclaim," the defendant must plead a counterclaim that arises out of the same "transaction or occurrence" as ...

In his New York Practice column, Patrick M. Connors writes that a plaintiff might elect to sue in a federal court hoping to compel the defendant to interpose as a counterclaim any claim arising out of ...

In the military and football, counter-attacking has always been a favoured tactic; it allows the defendant to turn an offence into its own attack, thereby surprising the opponent and gaining tactical ...