On Jan. 7, 2020, Iran launched more than a dozen ballistic missiles at Iraqi bases housing U.S. troops in retaliation for the United States killing Iranian general Qassem Suleimani.
No U.S. troops were killed in the strike, but the Pentagon initially reported that 34 suffered traumatic brain injuries. Officials then increased that number to 50, before saying a month later that more than 100 troops had suffered brain injuries.
