the recovery of lost territory or regaining lost ground/position; restoring land, status, or influence that was lost.
戦後、国は失地回復を目指して国際交渉を続けた。
After the war, the country continued international negotiations aiming to recover its lost territory.
歴史の教科書には、領主が失地回復に成功した話が載っている。
In history textbooks there are stories of lords who succeeded in recovering lost lands.
会社は競合に奪われたシェアの失地回復を狙って新商品を投入した。
The company launched a new product aiming to regain market share lost to competitors.