  We discuss matters related to the point that topological quantization in the
strong interaction is a consequence of an infinite spacetime volume. Because of
the ensuing order of limits, i.e. infinite volume prior to summing over
topological sectors, CP is conserved. Here, we show that this reasoning is
consistent with the construction of the path integral from steepest-descent
contours. We reply to some objections that aim to support the case for CP
violation in the strong interactions that are based on the role of the CP-odd
theta-parameter in three-form effective theories, the correct sampling of all
configurations in the dilute instanton gas approximation and the volume
dependence of the partition function. We also show that the chiral effective
field theory derived from taking the volume to infinity first is in no
contradiction with analyses based on partially conserved axial currents.
