  A novel Coulomb gas (CG) description of low energy QCD_4(N_c) is constructed.
The construction is based on the dual transformation of the QCD effective
Lagrangian. By considering a large gauge transformation, the charges of this
statistical system are identified with magnetic monopoles which carry
fractional charges of strength 1/N_c. Furthermore, the creation operator which
inserts the magnetic charge in the CG picture is explicitly constructed and
demonstrated to have a non-zero vacuum expectation value, indicating that
confinement does occur. The Wilson loop operator as well as the creation
operator for the domain wall in CG representation is also constructed.
Additional support for the D-brane picture suggested by Witten is also found.
Lastly, the relation of the CG picture with the instanton-quarks is also
discussed.
