Player Embed Code: Download Embed Share 101 Critical Days of Summer Defense Media Activity - Pacific May 13, 2014 | 1:29 Airmen at USAG Yongsan, Korea, are celebrating the arrival of summer, but more importantly… the 101 critical days of summer. 101 critical days of summer is the period from Memorial Day to Labor Day that we get an opportunity to reflect as Air Force Members on the importance of summer safety. Soundbites from Staff Sgt. Rozelyn Carwell, Col. William Norton, Joseph Colson, Jan Marc-Jouas.