Negotiations on a treaty declaring nuclear weapons illegal are planned for 2017. So far, Germany and others have tried to block this process, even while officially supporting a nuclear-weapon-free world. These contradictions will soon end, however: states will have to pick sides.
Currently the debate on nuclear weapons in the European Union is not making any progress, this could be due to the failure of the Non-Proliferation Treaty in 2015. Nevertheless, a nuclear-weapon-free zone in Europe should still be envisaged.