For months, The Intercept has reported that the Pentagon’s official tally of dead and wounded military personnel from the Iran War is a gross undercount, stemming from what another U.S. government official called a “casualty cover-up.” The Defense Casualty Analysis System, or DCAS, which tracks “deceased, wounded, ill or injured” service members for Congress and the president, is missing hundreds of known casualties. The true number exceeds 625.

When the first ceasefire was struck between the Trump administration and Iran, the tally of U.S. casualties was 385. Despite a pause in hostilities, the number slowly rose to 428, according to Pentagon statistics.

On April 21, however, the number of wounded-in-action troops declined by 15 without public comment from the War Department, dropping the casualty total to 413. Despite repeated questions over almost two months, the Pentagon has not explained the disparity in its casualty count. A defense official told The Intercept that it was impossible to tell whether Pentagon casualty analysts were “grossly incompetent” or had been ordered to manipulate the figures.

Since the 15 wounded vanished in April, the DCAS casualty count has steadily crept upward to top out at 413, where it stood on Tuesday morning. This includes one sailor wounded in action this month. Central Command did not reply to a request for further information about the injury.