When Russia invaded Ukraine, it put the global food supply at risk — until the two countries struck an unusual deal to keep shipments flowing. 

Last week, that deal fell apart.

Marc Santora, who has been reporting from Ukraine since the beginning of the conflict, explains what the collapse of the agreement means for the war and why its impact will be felt by tens of millions of people across the world.

Guest: Marc Santora, a Ukraine correspondent for The New York Times.

Background reading: 

• After Russia pulled out of the agreement allowing ships to carry grain past its Black Sea blockade, Ukraine accused Moscow of aiming strikes at food export infrastructure.
• Russia has hit the port city of Odesa repeatedly since withdrawing from the grain deal.

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