With the US Marine Corps (USMC) having declared initial operating capability (IOC) for the F-35B version of the Lockheed Martin Joint Strike Fighter (JSF) in 2015, the US Air Force (USAF) having done the same for the F-35A in 2016, and the US Navy (USN) set to follow suit with the F-35C in late 2018 or early 2019, the US military is at the beginning of the process to introduce what will be the country's premier combat aircraft for decades to come.
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