Emma relaxes before the corgi parade during a National Night Out event in St. Elmo on Tuesday, Oct. 2, 2018, in Chattanooga, Tenn. National Night Out is an annual campaign to promote positive relationships between police and their communities. Emma relaxes before the corgi parade during a National Night Out event in St. Elmo on Tuesday, Oct. 2, 2018, in Chattanooga, Tenn. National Night Out is an annual campaign to promote positive relationships between police and their communities.