5.**Military applications**

WSNs consist of a large number of small sensor nodes. Costing of small nodes is also less expensive. In military operations, there is always a threat or security challenges of being attacked by enemies. So if regular use of small nodes which is less expensive help to reduce the loss.

**Figure 10** shows wireless sensor networks for military application. This application provides suitable sensors which can be used in top secret missions. These sensors can detect, identify and classify threads based on the count, number, whether it is armored vehicles or men in foot, type and amount of weapons they carry, etc., can be detected in advance. This application provides reliable real time war pictures and better situational awareness.

**Figure 10.** *Wireless sensor network for military application.*
