  We study gluodynamics in an external Abelian electromagnetic field within the
dual superconductor approach. We show that the SU(2) gluodynamics should
possess a deconfining phase transition at zero temperature at certain value of
the external field. A dual superconductor model for the SU(3) gauge theory in
external field predicts a rich phase structure containing confinement,
asymmetric confinement and deconfinement phases. These results can be used to
check the validity of the dual superconductor description of gluodynamics in
external fields. We also discuss the gauge-independence of the obtained
results.
