fischer. >> thank you, mr. chairman. secretary mattis, in last year's ndaa, congress required the department to evaluate whether existing cruise missile systems could be converted into ground-launched version as part of our response to russia's violation to the inf treaty. the department's response, which was a letter from undersecretary lord, was sent to the committee two weeks ago, and it states that dod is in the early stages of identifying the system requirements and is therefore unable to conduct an assessment at this time. i know the department is moving forward on broader effort, beyond just a ground-launched cruise missile, but i am concerned about the urgency of the response, because as we both know, we can spend the next three years finding requirements and analyzing alternatives and not conduct any actual research and development. so, i would ask what is your expected timeline for moving forward on this and have you set any kind of internal rules to ensure we don't spend years in this preliminary stage? >> tha