sentences:  By August 1958, the system was delivered to the Air Force for early deployment overseas.Jupiter later proved to be a significant bargaining chip in the Cuban Missile Crisis.During his command, Medaris' operation also fielded the PGM-11 Redstone and MIM-23 Hawk missiles, accelerated the development of the Nike Zeus system, and began development of the MGM-31 Pershing missile system, which later played a role in ending the Cold War.