  We study decomposition of $SU(2)$ gauge field into monopole and monopoleless
components. After fixing the Maximal Abelian gauge in $SU(2)$ lattice gauge
theory we decompose the nonabelian gauge field into the Abelian field created
by monopoles and the modified nonabelian field with monopoles removed. We then
calculate respective static potentialis and show that the potential due to the
modified nonabelian field is nonconfining while, as is well known, the Abelian
field produces linear potential. We further find that the sum of these
potentials approximates the nonabelian static potential with good precision at
all distances considered. We conclude that at large distances the monopole
field potential describes the classical energy of the hadronic string while the
static potential due to the modified nonabelian field describes the string
fluctuations energy.
