In two dimensional SU(N) theories confinement can be understood as a t
opological property of the vacuum. In the bosonized version of two dim
ensional theories non trivial boundary conditions (topology) play a cr
ucial role. They are inevitable if one wants to describe non singlet s
tates. In abelian bosonization, color is the charge of a topological c
urrent in terms of a non-linear meson field. We show that confinement
appears as the dynamical collapse of the topology associated with its
non trivial boundary conditions.