Which scenario would most likely require satellite communications instead of ground communications?

The scenario that most likely requires satellite communications instead of ground communications is extended range missions.

Satellite communications are designed to cover vast distances and can facilitate connectivity over terrain where traditional ground-based communication methods may be unreliable or unavailable. In extended range missions, communication between units that are far apart is critical for coordination and operational success. Satellite links provide the necessary bandwidth and reliability for voice and data transmission across long distances, especially in remote or austere environments where ground communication infrastructure is limited or non-existent.

Local exercises in urban environments often benefit from established infrastructure and can effectively use ground communications. Routine operational checks typically involve shorter distances and can rely on more direct lines of communication that do not necessitate the use of satellites. Similarly, short distance connectivity can be efficiently managed with ground communication systems that are more cost-effective and easier to deploy.