See this IRS website for information on the Combat-Injured Veterans Tax Fairness Act passed in 2016 - <a rel="nofollow" target="_blank" href="https://www.irs.gov/newsroom/veterans-owed-refunds-for-overpayments-attributable-to-disability-severance-payments-should-file-amended-returns-to-claim-tax-refunds">https://www.irs.gov/newsroom/veterans-owed-refunds-for-overpayments-attributable-to-disability-severance-payments-should-file-amended-returns-to-claim-tax-refunds</a>
<a rel="nofollow" target="_blank" href="https://www.accountingtoday.com/news/irs-owes-tax-refunds-to-133-000-combat-injured-veterans?feed=00000158-20c2-d6a2-adfb-70eb85460000">https://www.accountingtoday.com/news/irs-owes-tax-refunds-to-133-000-combat-injured-veterans?feed=00000158-20c2-d6a2-adfb-70eb85460000</a>
https://www.irs.gov/newsroom/request-a-transcript-or-copy-of-a-prior-year-tax-return