In the past, the ruling groups of all countries, although they might recognize their common interest and therefore limit the destructiveness of war, did fight against one another, and the victor always plundered the vanquished.
He wandered round the base of the enormous fluted column, at the top of which Big Brother’s statue gazed southward towards the skies where he had vanquished the Eurasian aeroplanes (the Eastasian aeroplanes, it had been, a few years ago) in the Battle of Airstrip One.
There are no more uses of "vanquish" in the book.
Show samples from other sources
The team vanquished all competition.
You need to vanquish those negative thoughts and think about good things.