The Missile Defense Agency (MDA)'s Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) is a 10-year, Multiple Award Indefinite Delivery/Indefinite Quantity (MA-IDIQ) contract aimed at rapidly developing and deploying advanced, multi-domain defense technologies to protect the U.S. homeland, its allies, and forces against ballistic and hypersonic threats. It focuses on integrating AI/ML, digital engineering, and open-system architectures through 2035.