In WW I, the war to end all wars, the US had been a major supplier to the allies of supplies, material, and money.
Then in 1918 Wilson sent Pershing and the American Expeditionary Force to lend a hand.
This was accompanied by an unprecedented propaganda campaign.
Of course war bonds and recruiting posters, but also food.
Prior to 1900 the urban population was 35%, then industry drove that up to 45% by 1915, but that was mostly from New England
across the rust belt. A large part of the country had little manufacturing and cities were scarce.
The food supply, people didn’t grow themselves, was mostly general stores selling fresh non-processed food, even in the cities
there were no supermarkets. Cattle were butchered in NYC after coming in through a tunnel. This was a problem trying to supply
an army, especially after they went to Europe. Hence the big push to ask for help though a poster campaign.
Grow pigs, boys and girls.
