Formation of citizens’ armed forces, which provide, to the youth engaged in civilian professions, opportunities and facilities for military training and thereby constitute a reserve of trained manpower for ‘effective national defence in the event of an emergency’ is the direct result of the changed nature and character of modern war. Modern warfare (termed in military terminology as the fourth generation warfare) has not only greatly extended the area of conflict and the impact of fighting but it has completely wiped out the traditional difference between the ‘actual fighting lines and civilian population in the rear’.