This is a Request for Information / Sources Sought notice seeking qualified industry partners for a long-term engine production and sustainment strategy for USAF and Foreign Military Sales fighter aircraft. The government requests feedback on innovative propulsion solutions, production scalability—with a peak demand of over 180 engines per year by FY2034—and defense supply chain resiliency. Interested vendors must download and review the attached PDF for full details, technical inquiries, and submission guidelines.