Title page 1

Contents 3

Highlights 2

Letter 5

Background 6

Overview of Army Battlefield Network Efforts 6

Army Battlefield Modernization Organization 10

DOD Acquisition Framework 10

Using an Iterative Business Case 12

Army's Flexible Approaches Address User Feedback, Evolving Market Conditions, and Product Capabilities 13

Modernization Efforts Incorporate User Feedback and Monitor Evolving Market Conditions 13

Modernization Efforts Maintain Flexibility to Manage Evolving Product Capabilities 15

Army Lacks Information Needed to Evaluate the Scalability and Affordability of NGC2 21

Conclusions 24

Recommendations for Executive Action 25

Agency Comments 25

Appendix I. Key Elements of an Iterative Business Case 28

Appendix II. Comments From the Department of Defense 31

Appendix III. GAO Contact and Staff Acknowledgments 34

Table 1. Key Elements of an Iterative Business Case 12

Table 2. Planned Next Generation Command and Control (NGC2) Testing Events and Corresponding Details 14

Table 3. Next Generation Command and Control (NGC2) Requested Funding Totals by Layer for Fiscal Year 2026 22

Figure 1. Represention of Command Post Evolution Through Command and Control Fix Initiative (C2 Fix) and Next Generation Command and Control (NGC2) 7

Figure 2. Next Generation Command and Control (NGC2) Requirement Documents Hierarchy and Information 17

Figure 3. Leading Companies Iterate Capability Needs into Product Requirements as Business Cases Mature 30