  We investigate the relationship between asymptotic symmetries of QCD and
vacuum transitions induced during scattering. Starting with the Fock vacuum in
the far past, the infinity of conservation laws associated to (non-Abelian)
asymptotic symmetries in QCD can be used to determine the vacuum in the far
future. We show that the corresponding asymptotic Hilbert space in the future
is generated by a class of dressed states in which each finite energy particle
is dressed by a cloud of interacting soft gluons. We identify the precise
structure of the dressing using conservation laws and show that the
corresponding asymptotic states are equivalent to the generalised coherent
states defined by Catani et al.
