  We analyze the physics potential of long baseline neutrino oscillation
experiments planned for the coming ten years, where the main focus is the
sensitivity limit to the small mixing angle $\theta_{13}$. The discussed
experiments include the conventional beam experiments MINOS, ICARUS, and OPERA,
which are under construction, the planned superbeam experiments J-PARC to
Super-Kamiokande and NuMI off-axis, as well as new reactor experiments with
near and far detectors, represented by the Double-Chooz project. We perform a
complete numerical simulation including systematics, correlations, and
degeneracies on an equal footing for all experiments using the GLoBES software.
After discussing the improvement of our knowledge on the atmospheric parameters
$\theta_{23}$ and $\Delta m^2_{31}$ by these experiments, we investigate the
potential to determine $\theta_{13}$ within the next ten years in detail.
Furthermore, we show that under optimistic assumptions and for $\theta_{13}$
close to the current bound, even the next generation of experiments might
provide some information on the Dirac CP phase and the type of the neutrino
mass hierarchy.
