in recent years, a lot of research is focused on wireless sensor network applications, which is focused on field of performance, security, and energy. This paper addressed the difficulties and challenges facing the wireless sensor networks on the battlefield. Which is often vulnerable to attacker's networks either in the data or corrupting control devices and attempt to consume a lot of energy by sending a large quantity of useless packets, which contributes to excessive consumption of energy and leads to exit nodes from work. Since technology has become widespread on battlefields at the present time, then the sensor nodes are vulnerable to attackers from both sides. This research discussed many challenges and gave appropriate solutions. The simulations showed that these solutions can help secure data and saved 40% of energy consumed.

Anycast is a mechanism that sends the data to the nearest node, which have the same anycast address. For those event-driven wireless sensor network application, anycast mechanism is effective. Event Aware Anycast (EAA) is proposed, which uses the complete or part data fusion according to the relativity of the data. The EAA algorithm preferably solve the construction of the routing in WSNs driven by events, decrease the spending of the route re-construction because of the moving of the Sensor nodes, and it remains the event location information during the data fusion. Compared with the traditional algorithm, EAA algorithm has been proved to be a better solution in the cost of energy and time.n.

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