Carrie Underwood, Rodney Atkins, Darius Rucker and John Rich are among those performing at Fort Campbell, Ky., for two Salute to the Troops concerts for soldiers and families of the 101st Airborne Division. The performances are part of an event billed as Week of the Eagles to celebrate the return of the 101st Airborne's Screaming Eagles from service in the Middle East. Underwood, Rich and Jake Owen will perform on Aug. 14. The Aug. 15 show features Atkins, Rucker and Jypsi. Underwood's performance at Fort Campbell is one of only a few concerts she has scheduled this summer. Her new album will be released later this year. The Salute to the Troops activities are free and open to the public, but all visitors to the military installation will be required to present a valid photo ID and show current registration and proof of insurance for any vehicle admitted.