A defence journalist, specialising in C4I and land power and a regular contributor to MT.

The article offers information on several military technology used in watching an area of terrain. It states that the unattended ground sensors (UGS) are the extreme technological representation of the sentry. It says that the Pulse-Doppler signal processing has revolutionised ground surveillance. Moreover, Selex Sistemi Integrati SpA signed a deal with Italy in 2011 to supply Lyra 10 radars designed for homeland security as well as other applications.