Answer:the working class and the veterans.
Explanation:The working class are those people with little to no education background, who work so hard using their own hands and they sweat all day long but they are the basic structure that keeps everyone else life running. They work on the railroad, they built towers as this excerpt state , all of these things they build are things that everyone needs.
The writer also mentioned that he has fought wars but now he finds himself standing in the line, which means he finds himself without any money and begging like everyone else as if there is nothing he contributed to the country.
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i dont know if that helps though
