  We calculate the energy per particle of symmetric nuclear matter and pure
neutron matter using the microscopic many-body Brueckner-Hartree-Fock (BHF)
approach and employing the Argonne V18 (AV18) nucleon-nucleon (NN) potential
supplemented with two different three-nucleon force models recently constructed
to reproduce the binding energy of $^3$H, $^3$He and $^4$He nuclei as well as
the neutron-deuteron doublet scattering length. We find that none of these new
three-nucleon force models is able to reproduce simultaneously the empirical
saturation point of symmetric nuclear matter and the properties of three- and
four-nucleon systems.
