Airman 1st Class Justin Caraballo, structures airman from 436th Civil Engineering Squadron, assists his fellow Airmen while concrete is poured during the construction of the Tactics and Leadership Nexus facility July 17, 2020, at Dover Air Force Base, Delaware. Approximately 10,000 pounds of concrete were poured during construction, which began in April 2020. (U.S. Air Force photo by Airman 1st Class Faith Schaefer)