More than 70 years ago, radiolocation has been recognised as 1 of the most crucial areas for defence determining autonomy and self-sufficiency. Radars are the first and main origin of information on the imminent threat. They let command systems to decently dispose of available aviation and anti-aircraft resources in defence of the full state. They let precise fire conduct even for very fast and tiny air purposes, and the recognition systems of the ‘outsiders’ defend their own troops from fraternal fire.