Spc. John Irish, a public affairs specialist with the 354th Mobile Public Affairs Detachment, a U.S. Army Reserve unit based out of Coraopolis, Pa., left, interviews James Sims, a reenactor with Knap’s Independent Battery “E,” a local Civil War reenacting group from southwestern Pennsylvania, right, during a living history event in Upper St. Clair, Pa., May 19, 2018.