history would seem to be national recruiting and allegiance, distinctive
methods of training and administration, continuity of service and
general homogeneity of form. The method of raising men is of course
different in different states. In this regard armies may conveniently be
classed as voluntarily enlisted, levied or conscript, and militia,
represented respectively by the forces of Great Britain, Germany and
Switzerland. It must not be forgotten, however, that voluntary troops
may be and are maintained even in states in which the bulk of the army
is levied by compulsion, and the simple militia obligation of defending
the country is universally recognized.