English Translation
The soldiers turned traitor.
If the soldiers just left the troop, you may say 裏切った.
If they left the troops to join the enemy, 寝返った（ねがえった）is an alternative translation.
The soldiers turned traitor.
If the soldiers just left the troop, you may say 裏切った.
If they left the troops to join the enemy, 寝返った（ねがえった）is an alternative translation.