  We present a multisymplectic formulation of the Yang--Mills equations. The
connections are represented by normalized equivariant 1-forms on the total
space of a principal bundle, with values in a Lie algebra. Within the
multisymplectic framework we realize that, under reasonable hypotheses, it is
not necessary to assume the equivariance condition a priori, since this
condition is a consequence of the dynamical equations.
