  The Deep Underground Neutrino Experiment (DUNE) is a project to design,
construct and operate a next-generation long-baseline neutrino detector with a
liquid argon (LAr) target capable also of searching for proton decay and
supernova neutrinos. It is a merger of previous efforts of the LBNE and LBNO
collaborations, as well as other interested parties to pursue a broad programme
with a staged 40 kt LAr detector at the Sanford Underground Research Facility
(SURF) 1300 km from Fermilab. This programme includes studies of neutrino
oscillations with a powerful neutrino beam from Fermilab, as well as proton
decay and supernova neutrino burst searches. In this paper we will focus on the
underground physics with DUNE.
