425.2. The Destination is where the Permanent is going to.
425.2.a. In Modes of Play with more than two players, Battlefields with Staged Combats or Combats in Progress are Invalid Destinations for Moves of all kinds ( Standard Moves or otherwise) by Units controlled by Players who don't already have permanents at that Battlefield .
425.2.b. If an action would require a Move that would cause a Unit to become present in a Location where it cannot move for any reason, such as a Battlefield with two players that are not the controller of the Unit performing this Move action are in a Combat or such a Combat is Staged , it instead Recalls. See rule 432. Recalls for more information.