 ULA does have a history of launching SIPR's missions. We've done four to date, starting back in 2011. The work really starts about two or sometimes even more years before launch, where we get a set of requirements from the payload customer. And then from there, it's an ongoing process to work with both the payload manufacturer as well as the government teams to make sure all of the requirements are defined for all those interfaces between our rocket and the payload. What's unique about SIPR's 5 is that Lockheed Martin redesigned the satellite. This is the inaugural military program to use Lockheed Martin's day 21 combat bus. Now, instead of having a bus built around our sensors, we have a common bus that you can now adapt to different sensors. And so it's going to be able to be produced a lot quicker, cost-wise. You're going to get this more production assembly line flow and get capability out to the war fighters a lot quicker. SIPR's Geo 5 is a perfect example to highlight the partnerships and teamwork that exists in national defense. So take the MMO's payload that's on this rocket. That's been a huge effort with the mission manifest office and the Air Force Academy. And then the anchor vehicle, the SIPR's program, has been a great teamwork effort with Lockheed Martin, their contractor. And of course, you have the United Launch Alliance and the Launch Enterprise and Aerospace ensuring that this whole process could be as successful as possible.