  Sagittarius, the nearest external galaxy, will be amenable to detailed
abundance studies with VLT and other 8m class telescopes. Such data, in
conjuction with the similar data of our own galaxy, will allow a deeper
understanding of chemical evolution. Our study conducted with NTT shows the
presence of metal-rich stars with radial velocities compatible with Sagittarius
membership and of stars as metal-poor as [Fe/H]=-1.5. In this talk I shall
address the way in which VLT instruments will allow to clarify this intricate
situation.
