Air Force 1st Lt. Sean Street, right, and 2nd Lt. Laura Huxtable, 319th Missile Squadron, listen to a briefing inside the 90th Operations Group on F.E. Warren Air Force Base, Wyo., Dec. 31, 2015, as they prepare to depart to the missile field to stand alert into the New Year. During their alert mission the two missileers received a phone call from Gen. Paul Selva, vice chairman of the Joint Chiefs of Staff, wishing them a happy New Year.