[en] Our drive to describe multi-hadron systems in terms of quark-gluon dynamics has continued in the past year with the emphasis being on studying models which are motivated by the underlying symmetries of QCD. We are concerned with three major symmetries: Lorentz covariance, local SU(3) color gauge invariance and chiral invariance. A large fraction of quark models of hadrons do not incorporate any of these symmetries and in many cases such models produce unphysical predictions, e.g., color Van der Waal's interactions, discontinuous axial vector currents, divergent self energies, etc. Since it does not appear possible as yet to include all the desired ingredients of QCD we have been studying models which incorporate some of the major consequences of the underlying QCD theory. In the past year there have been two major areas of study which are discussed: nucleon-nucleon systems and relativistic equations