  We study the spatial volume dependence of electric flux energies for SU(2)
Yang-Mills fields on the torus with twisted boundary conditions. The results
approach smoothly the rotational invariant Confinement regime. The would-be
string tension is very close to the infinite volume result already for volumes
of $(1.2 \ {\rm fm.})^3$. We speculate on the consequences of our result for
the Confinement mechanism.
