What is a primary responsibility of the Combatant Commands (COCOMs)?

The primary responsibility of the Combatant Commands (COCOMs) is to analyze and disseminate all-source intelligence. This function is critical to ensuring that commanders have the comprehensive intelligence needed to assess the operational environment, plan military actions, and adapt to changing circumstances. All-source intelligence encompasses information from various sources, including human intelligence, signals intelligence, imagery, and open-source information. This multi-faceted approach allows COCOMs to gain a more accurate and complete understanding of threats and operational contexts they face, enabling effective decision-making and strategic operations.

The other choices do not accurately reflect the core mission of the COCOMs. Conducting geological surveys, creating mathematical models of Earth, and implementing GIS software applications can be important tasks in specific contexts but do not encompass the broader responsibility of COCOMs, which is centered around intelligence analysis and operational readiness.