Mandatory Military Service

A country's potential is determined by its strength in defense and strong economy. Having said this as an individual citizen how can one contribute to his country's needs, one best way of initiating this via government is to introduce One Year Mandatory Military Service to its citizen in the age group 18-23. This practice is already existing in few countries like Germany. Should not such practice be introduced in India as well?
Such Military service program should not only be associated with the training activities like making physical fit, drill, discipline, weapon training. But also educate its candidate in Civil, Judiciary and Political science of the nation. Though these subjects are taught in primary school level, which is totally filtered out by the time an person start taking his competitive exams. These knowledge is totally lacking in people, for lets say how many of you know your National Duties. Large number of people are not aware of the Laws that need to be known for any legal actions and not many are aware of the constitution.
Teaching such subjects to an individual would create more awareness in the society and one will be in a better position to understand current affairs. Or will also appreciate any new policy/bill that is proposed in the Parliament and will be in better position to draw conclusions.
A country is also benefited by such a program, where it gets a huge young resource to fight in crisis like natural calamities or national unrest. It is also likely that many would like the career in defense and would pursue their career further in this field.
Such program is a win-win situation where both country and an individual citizen enjoys benefit of growth. Hence should be entertained and brought up in to action as quickly as possible.