Senator Tammy Duckworth is set to introduce legislation Thursday that aims to prevent the Pentagon from reclassifying war casualties, a move designed to create a single, cumulative tally for the ongoing conflict with Iran. The bill comes after the Pentagon revised its public reporting of Iran war casualties last month, shifting them into a broad new category labeled 'Overseas Operations' instead of maintaining a singular, cumulative count.

This change has raised concerns that it could obscure the true human cost of the war, making it difficult for the public to track the conflict's toll. Historically, the number of U.S. troops killed and wounded has served as a critical metric for assessing a conflict's cost and justification.

Senator Duckworth, an Iraq War veteran who lost both legs in combat, expressed a lack of confidence in Secretary of Defense Pete Hegseth regarding transparency about the war's impact. "I don't have the confidence in the Pentagon, and Hegseth in particular, being honest with the American people," Duckworth stated in an interview with ABC News.

The Pentagon's new accounting method effectively divides the conflict into separate reporting categories. The 'Overseas Operations' designation includes all U.S. military deaths and injuries across U.S. Central Command's area of responsibility since July 7, encompassing a wide geographic region rather than isolating casualties specifically from the Iran conflict.

This separation of casualty figures from earlier phases of the war is considered unprecedented and could hinder the creation of a clear, cumulative accounting of the conflict's human toll. As of Thursday morning, 18 U.S. troops had been killed and at least 689 wounded since the war began in February.

Duckworth's proposed bill would mandate that the Pentagon consolidate all casualty records for the Iran war into a single count. It would also require the notification of next-of-kin for any service members killed, should corrections to casualty figures be made.

The accounting shift appears linked to the Trump administration's assertion that Operation Epic Fury, the initial name for the Iran war, concluded in May. The resumption of daily fighting on July 7 was then designated as a new phase, a reinterpretation of the War Powers Resolution that has drawn scrutiny from national security experts. This interpretation may also impact the administration's ability to wage war without congressional approval.

Acting Pentagon Press Secretary Joel Valdez had previously attributed the accounting changes to technical issues. The Defense Casualty Analysis System is the official federal record for war casualties, maintained through reports submitted by the military services.