Enforcement
When there finally is a final judgment, the plaintiff will likely be barred under res judicata from trying to bring the same or similar claim again against that defendant, or from relitigating any of the issues, even under different legal claims or theories. This prevents a new trial of the same case with a different result, or if the plaintiff won, a repeat trial that merely multiplies the judgment against the defendant.
If the judgment is for the plaintiff, then the defendant must comply under penalty of law with the judgment, which will usually be a monetary award. If the defendant fails to pay, the court has various powers to seize any of the defendant's assets located within its jurisdiction. If all assets are located elsewhere, the plaintiff must file another suit in the appropriate court to seek enforcement of the other court's previous judgment. This can be a difficult task when crossing from a court in one state or nation to another, though courts tend to grant each other respect when there is not a clear legal rule to the contrary. A defendant that has no assets in any jurisdiction is said to be "judgmentproof", because in most cases nothing can be done to collect an award from a moneyless defendant.