# Blockchain Applications in the Military Domain:
## 4 Results  
The results of this systematic review highlight the multifaceted potential of blockchain technology in military applications, underscoring its transformative role across key domains such as security, transparency, operational efficiency, and decision-making processes. Drawing insights from the analyzed literature, this section synthesizes findings on blockchain's ability to address critical challenges in military contexts, including data integrity, supply chain management, autonomous systems, and cybersecurity as follows. At this point, Figure 3 illustrates how blockchain technology will be applied to military operations, ranging from logistics management to secure communication, UAV operations, AI integration, IoT connectivity, and maintenance automation. The interrelations between them show the impact of blockchain on supply chain traceability, data encryption, predictive maintenance, and real-time monitoring. Color-coded nodes categorize the functionalities: yellow for connectivity and real-time data, red for security, green for logistics, blue for autonomous systems, and pink for AI and decision making. This visualization hints at how much potential blockchain can bring to enhance security, transparency, and efficiency within military contexts. Additionally, the heatmap in Figure 4 illustrates the distribution of the 43 studies analyzed across various methodologies and application domains. The methodologies considered include systematic reviews, case studies, experimental studies, and theoretical analyses, while the application domains encompass supply chain management, secure communication, UAV operations, AI integration, and IoT applications. Darker shades in the heatmap represent higher study concentration in specific domain-methodology combinations, while lighter shades indicate lower concentration. Notably, systematic reviews and case studies dominate research in supply chain management and secure communication, reflecting their critical importance in military logistics and data security. Experimental  
Figure 3: Visualizing blockchain applications in military contexts. studies and theoretical analyses show balanced representation across emerging domains, such as UAV operations, AI integration, and IoT applications, highlighting efforts to test and conceptualize blockchain's integration with advanced technologies. The heatmap provides a comprehensive view of the research landscape, showcasing the methodological rigor and domain-specific focus in exploring blockchain applications for military contexts. Moreover, the graph above (Figure 5) visualizes the hierarchical relationships and dependencies between various applications of blockchain technology in military contexts. Each node represents a specific domain or subdomain, such as logistics, cybersecurity, IoT, UAVs, or smart contracts, color coded uniquely for distinction. Larger nodes highlight key concepts or categories, while the connecting edges represent functional relationships or technological integrations between them. The legend to the right explains the color-coded nodes, making the graph more intuitive and interpretable. This representation emphasizes the interconnected nature of blockchain applications in enhancing military operations, security, and efficiency. **[RQ1]. **_How can blockchain technology enhance data security and privacy in military communication systems?_  
Recent developments in blockchain implementation for the military domain are highly sophisticated along several vectors, namely, maintenance management, network architecture, and battlefield data dissemination. The implementation of blockchain-enabled frameworks for maintenance management demonstrates substantial innovation through the automatic tracking and validation processes in return. Researchers draw a conceptual framework that retains granular maintenance information while implementing smart contracts for automated validation and enables specific military equipment maintenance in highly secure environments [54].