  A non-linear sigma model effective lagrangian is analyzed for theories in
which supersymmetry is softly broken at scales below the electroweak symmetry
breaking scale. Besides the gauge and matter supermultiplets, the low energy
theory contains only three Goldstone chiral multiplets. The higgsino, gaugino
as well as the charged and neutral Higgs bosons have (light) phenomenologically
acceptable masses, the values of which depend on the explicit soft
supersymmetry breaking parameters. In addition, the longitudinal vector bosons
become strongly interacting at high energies ($M_Z \ll E \ll 4\pi v$). The
equivalence theorem is exploited in order to obtain their scattering
amplitudes. Furthermore, supersymmetry results in enhanced longitudinal vector
boson production of Higgs bosons.
