What does 1 Chronicles 20:2 mean?

David took the crown from the Ammonite king's head. It weighed about seventy-five pounds and was set with a precious stone. David put it on his own head and took a huge amount of loot from the city. 1 Chronicles 20:2 - Modern Text Bible

(David claims the Ammonite king's crown and treasures, showing his victory and dominance over them.)