Now a day’s Wireless Sensor Network (WSN) tends to attracts scientific community and its applications become the topic for many studies. This has been made possible by availability; especially in sensors have gotten smaller, cheaper and smarter in recent years. In order to form a network, these sensors are equipped with wireless interfaces by which they can communicate with each other. The use of and the ability to organise these sensors into networks have revealed several research challenges and have highlighted new approaches to deal with those problems. The goal of this article is to provide an up-to-date overview of both traditional and most modern WSN military applications and, hopefully, not only to allow this scientific field to be understood, but also to encourage the perception of new applications. The key categories of Wireless Sensor Networks applications are identified and characteristic examples of the applications are identified in order to achieve this objective.

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