. >> just to make sure to clarify general bokton said the maintainer issue could be a show stopper. >i'm talking about the development of the aircraft. the maintainer issue is not an f-35 program issue. it's an air force program. >> but it is critical for ioc declaration. >> and we will look at -- you have to have enough to operate your initial detachment of airplanes but we will have enough for that. we have enough people to prioritize this to the point that we will be able to get to ioc. by the way we get some help from the congress on this as well that allow us to get there. aaron? >> i was wondering if you can speak just to clarify, you said you will attempt again in the next budget to retire some aircraft. is that the same groups of aircraft that you talked about in the last budget trying to retire? secondly, can you talk maybe generally about how the operation on isis has impacted the budget request certain areas you need to plus up or take away from? >> i would answer that question by saying we are constantly monitoring what is going on in the world. we're constantly making adj