Implementing distributed data storage and sharing faces unique challenges in the military wireless domain. Military tactical networks have mobile nodes with different, specialized mission functions. They operate in a noisy, often-obstructed, and adversarial environment, where nodes can be easily lost. The network is often partitioned into smaller sub-networks, and the data is highly dynamic and time sensitive. Solutions must address performance, reliability, security, and resilience, and compatibility with future tactical platforms and components. To address these issues, IAI has been awarded a contract entitled, “DataGuard: A Secure, Reliable and Efficient Data Storage and Transition System for Mobile Ad Hoc Network.” DataGuard is a distributed system that integrates various coding techniques, data migration protocol and service evaluation model, to enable secure data storage and efficient data access in wireless ad hoc networks. Various coding techniques will be adopted, including erasure coding scheme, threshold crypto algorithm, and symmetric crypto primitives to protect data at rest and in transit against eavesdropping and Byzantine attacks. A data migration protocol will allow the data storage system to self-adapt to network dynamics. Additionally, the service evaluation model will allow data users to evaluate the data delivery service provided by the data storage nodes. The combination of coding schemes, data migration protocol, and service evaluation model will significantly improve data availability with distributed implementation in wireless ad hoc networks. Finally, the feasibility of the coding techniques, data migration protocol and service evaluation model will be demonstrated in a workable data storage and transmission prototype for wireless ad hoc networks.