...the possession of property known to have been stolen from another is, well, stealing.
Almost.
Property taken by conquest or derring-do is called Booty or Loot or Plunder or Spoil, and there's not a darn' thing wrong with that.
For example, most of the treasures of the Tabernacle (including the Ark of the Covenant) were made of goods "borrowed" by the Children of Israel from the Egyptians, on a rather permanent basis. (cf Exodus 12:35-36)
I call that slave reparations, not booty. Besides, when The Big Guy tells you to take something, you do it.