 It's things like Marines making energy where they are with solar power so that they don't have to carry batteries. Saves a company of Marines 700 pounds in batteries. It's things like making sure that we don't have to use generators in the field. It's things like having hybrid ships like the Macon Island in the America, big deck amphibious ships, very large ships that run on normal diesel power for speeds over 12 knots but runs on electric power for speeds under 12 knots. First time Macon Island went on deployment it brought back almost half its fuel budget and stayed at sea 44 days longer than it would have as a conventional ship. So we're building those kinds of ships, we're beginning to retrofit some of our destroyers with this. So we're moving toward alternative fuels but we're also using significantly, significantly less fuel, less energy for the Navy and for the Marine Corps.