Indian Defence and Security Introduction National Defence and security is of prime importance for any Government or nation. National Defence means that the protection of a rustic against foreign invasion or aggression. National Security could be a construct that that expects the Central Government of a unitary state to shield the full country and its folks against any national crisis by adopting political, economical, diplomatic, military alternative means that. India: throughout the amount of over sixty five years of our country’s existence since Independence, there has been invasions and aggression. This additionally means in spite of our country’s efforts to keep up peace within the region and with a population of peace i nationals, we've got been forced to devote a good deal of thought to the requirement of National Defence. we have a tendency to pay immense amounts on strengthening defences, to shield ourselves from such aggressions. Categories of Na...