Title: Globular clusters as tracers of the hierarchical formation of the Milky Way Abstract: Globular clusters have played an important role in the study of the processes that led to the formation of our Galaxy. Moreover, the dual Galactic globular cluster system is considered a manifestation of its hierarchical formation in the context of the Lambda-CDM scenario. Wide- field imaging, as the one obtained for our project for Rg > 15kpc, is a crucial tool to unveil the remnants of their progenitor dwarf galaxies, already assimilated by the Milky Way. In this poster, I will present some results pointing to the external origin of an important fraction of the Galactic globular clusters.