Final answer:
The United Nations' goal is to end hunger and food insecurity globally, aiming for zero hunger by 2030. The statement supporting this goal is that the UN views the use of starvation in war as a threat to millions of lives.
Step-by-step explanation:
Part A: Goal of the United Nations
The goal of the United Nations (UN) relevant to the question is to end hunger and food insecurity around the world. This ambition is part of the broader Sustainable Development Goals that the UN has committed to achieving, which includes aiming for zero hunger worldwide by 2030.
Part B: Supporting Evidence from the Text
The evidence that best supports the UN's goal to end hunger and food insecurity comes from the mention that "The U.N. said using starvation in war is a threat to the lives of millions of people." This assertion highlights the organization's stance against practices that exacerbate hunger, especially in conflict situations, and underscores their commitment towards ensuring food security globally.