Intelligence, surveillance, and reconnaissance (ISR) platforms and strike platforms operating at medium and low altitudes pose special communications challenges. This analysis finds there is no one solution for all situations and platforms. A combination of options, which will vary depending on altitude, range, data rate, and threat, will be needed to ensure a robust communications link. Although communications does not appear to be a limiting factor for future ISR forces, programmatic action will be required to develop the necessary systems and the costs could be high.