reoccupy

verb

to occupy again; to take possession of, settle or maintain a position in a certain place again

Wiktionary

verb

Etymology: Etymology tree Proto-Italic *wre- Latin re-der. Old French re-bor. Middle English re- English re- English occupy English reoccupy From re- + occupy.

To occupy again.
“The enemy soldiers, through force of numbers, were able to reoccupy the garrison.”
To occupy (oneself) again.