Linda Thomas-Greenfield: “We do care as a nation about South Sudan.”

We will not continue to allow them to use that perch to terrorize the world with their actions.

But we have used the Security Council, we have used the General Assembly to isolate Russia, to condemn Russia, to kick Russia off of the Human Rights Council.

The truth is that this war was one man`s choice, and one man alone -- President Putin. It was his choice to force hundreds of thousands of people to stuff their lives into backpacks and flee the country.

Hunger is caused, often intentionally, by conflict.