[be] in the wars

to sustain injuries as the result of an accident or fight

The idiom "be in the wars" has its origins in military and combat terminology. It is believed to have been used since the 18th century and refers to a person who has experienced physical injury, hardship, or a series of unfortunate events that might result in physical or emotional distress.

You've got a cut on your arm as well, you poor thing.You really have been in the wars!
After the car accident, Sarah was in the wars with various injuries, including a broken arm and multiple cuts and bruises.
John had a rough week dealing with family problems and work stress; he looked like he'd been in the wars.
The athlete had a challenging season with one injury after another, and he felt like he had been in the wars.
After the intense legal battle, the lawyer appeared worn out and as if he'd been in the wars, fighting on behalf of his client.