The grain market will see some volatility and there definitely will short and long term hunger. There will also be food security fear and doubt whereas many will no longer know what they’ll eat or when and the next meal is always a scramble and hustle.
How it’ll go down I’m not sure because things have changed since the Cold War with globalization. We could be fine here IF we go back to America first thinking but that is doubtful because it’s politicians money first supported by The People who will have guilt and want to send everything everywhere.