  Studying a quantum field theory involves a choice of space-time manifold and
a choice of background for any global symmetries of the theory. We argue that
many more choices are possible when specifying the background. In the context
of branes in string theory, the additional data corresponds to a choice of
supergravity tensor fluxes. We propose the existence of a landscape of field
theory backgrounds, characterized by the space-time metric, global symmetry
background and a choice of tensor fluxes. As evidence for this landscape, we
study the supersymmetric six-dimensional (2,0) theory compactified to two
dimensions. Different choices of metric and flux give rise to distinct
two-dimensional theories, which can preserve differing amounts of
supersymmetry.
