“It's increasingly an area where civil firms can partner with defense companies as an entry point to the market,” Hemler said. A boom for the aerospace supply chain. “And because defense and commercial are growing very sharply, there's a huge pull on the supply chain to keep up with that.” That demand can put a lot of strain on suppliers as commercial companies cross over to sell more to militaries. But “directing prime contractors, essentially, to rationalize their entire supply chain all the way to the bottom…it’s a Herculean undertaking.”