The US and Europe will purchase massive amounts of staples on the open markets to donate to the starving in Africa, South America and South Asia.
And prices worldwide will shoot through the stratosphere.
Cutting supply by 30+% (and that just the Ukraine war cut) and demand will remain constant.
Food will be available in the US.
If you can afford it.
And obesity will be reduced yugely in United States, which will unleash amazing health benefits to Americans. I have traveled to 40+ countries and never seen so many obese people as in USA.
Donating food stuffs to third world countries will not end famine. The environment in each of these countries will only support a certain number of people. By artificially increasing the food (beyond what the environment supplies) only cause the population to continue to grow, which only makes the problem worse.
The following need for additional food is even greater.