Just like previous Non-Proliferation of Nuclear Weapons treaty, the Nuclear-weapon-free zone agreement and the Comprehensive Nuclear-Test-Ban treaty, this treaty is a progressive step in the campaign towards global denuclearisation. It is the first legally binding agreement with the goal of working towards the complete elimination of nuclear weapons. However, as there is currently a legal international void in this area, this treaty is simply the start, a call to the international non-nuclear community to step up and fill this legal gap.
The goal of the treaty is not simply to bridge the legal gap in the use of nuclear weapons, which considering tense international relations of some nuclear capable nations could be a long way off. However this treaty and the campaigning around it will act as a form of international pressure and offer nations the chance demonstrate their commitment to disarming. Advocates of the treaty aim to stigmatise nuclear weapons rather directly legally ban them, making this treaty a stepping stone to a nuclear weapon ban.