FILE - In this April 29, 2020 file photo, a sign displaying the size of the national debt is displayed along an empty K Street in Washington. The Congressional Budget Office has warned that the government this year will run the largest budget deficit, as a share of the economy, since 1945, the year World War II ended. Next year, the federal debt — made up of the year-after-year gush of annual deficits — is forecast to exceed the size of the entire American economy for the first time since 1946. (AP Photo/Andrew Harnik, File)
WASHINGTON — The U.S. government’s war against the coronavirus is imposing the heaviest strain on the Treasury since America’s drive to defeat Nazi Germany and imperial Japan three-quarters of a century ago.