Phenomenology of future long-baseline neutrino experiments

I review some basic ideas behind possible future long-baseline neutrino experiments to determine the neutrino mass hierarchy and uncover leptonic CP violation. With emphasis of 'large θ13' hypothesis I try to illuminate the principles of the conventional method for resolving the mass hierarchy by using the earth matter e.ect, and for detecting CP violation as a vacuum e.ect. They include the VLBL on-axis approach and the two-detector method. Some unconventional ideas for reaching the same goal are also mentioned.