a common leading thought, and not arbitrarily
or accidentally strung together, is a matter of
course, and does not remove the distinction.
Again, among certain operations a more
intimate relationship will generally be brought
about by the fact that they are conducted under
similar circumstance, at the same time of year,
against the same hostile army and are separated
from the rest of the operations through
conditions of time or space, change of opponents
or alteration in the method of conducting
the war. Such an association of operations is
called a “campaign,” which forms a definite
portion of the war.9
Therefore, by the end of the 19th
century, there was an understanding that
the evolution of warfare, increasing size of