It`s a War trophy.
The Indians in Massachusetts during the New England Indian Wars wore captured/killed British 3-pointed hats and braided gold jackets.
During the 1690`s & 1709 up until 1753, the French, in skirmishes with Dutch-English combined forces out of Fort Edward and Schuylerville, wore Spanish chest armor captured from the Dutch, still to be seen in Fort Ticonderoga Museum glass case.
I agree.
Right. After the battle of Isandlwana, Zulu warriors wore British uniform jackets and helmets as trophies.