F.E. WARREN AIR FORCE BASE, Wyo. -- The 90th Civil Engineer Squadron conducted a 96-hour Warrior Day exercise May 23-26 on F.E. Warren Air Force Base, Wyoming. Over the four day training exercise organized by the Prime Base Engineer Emergency Force, they built up a deployed-style base, simulated rocket and chemical attacks, conducted medical extractions with the 37th Helicopter Squadron, and practiced rapid air field damage repair. The training is designed to prepare CE personnel for a deployed environment.