If a global war can stop food imports/exports, you are very close to a civilization collapse if dependent on fossil fuels. Once the oil supply is cut off (which

If a global war can stop food imports/exports, you are very close to a civilization collapse if dependent on fossil fuels. Once the oil supply is cut off (which happens long before food), everything stops. You'd be better off relying on solar panels and having energy security, which is the most critical thing to have. Fossil fuel-based power plants can be bombed, but solar panels all over the country can never be bombed. And, there is already an overabundance of food production, specifically corn, soybeans, and milk, in the US.