OneWeb, Project Kuiper, and IRIS2 are investing heavily in satellite communications systems that could potentially replace Elon Musk's system in Ukraine. However, this is unlikely to sd without significant technical advancements.These projects face substantial hurdles in replicating Starlink's coverage and usability. The scale and complexity of launching a large satellite constellation are considerable.Regulatory and logistical challenges also pose a major obstacle. These issues will need to be addressed before any of these systems can provide a viable alternative to Starlink's existing infrastructure.