U.S. Air Force Academy Cadet 1st Class Morgan Trevarthen motivates a fourth class cadet. U.S. Air Force Academy Cadet 1st Class Morgan Trevarthen motivates a fourth class cadet during Recognition events at the academy in Colorado on March 12, 2010. Recognition, which consists of several days of activities that are designed to mentally and physically challenge freshmen cadets, culminates with the ascension of the freshmen into the ranks of upper-classmen. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 662405-I-PQS51-687.jpg Photo Gallery