By mid-morning, the sun is already searing as Nyamor Nwat, 40, kneels over a grinding stone, its top side smoothened from the countless down-strokes she has made to crush thousands of tiny round millet seeds into a rusty red paste. As she works, she tells us that one small bucket full of this paste – boiled – is all that her extended family of 18 will eat today.

Nyamor is living with her family in a small farming village outside of Lankien, in northern Jonglei, an opposition held area in South Sudan. All major supply routes but one have been cut off due to fighting. The last remaining accessible road has only been open for about six weeks, but will close again once the rains set in around April.