Aerial file photo taken from a helicopter shows Ain al-Asad air base in the western Anbar desert, Iraq
Al Asad Airbase in Iraq's western Anbar desert.
  • In January 2020, Iran fired nearly a dozen ballistic missiles at an Iraqi base housing US troops.
  • No US personnel were killed, but more than 100 were later diagnosed with traumatic brain injuries.
  • Those injuries were a likely preview of US casualties in a future war, medical researchers say.

An unprecedented Iranian ballistic-missile attack in Iraq in January 2020 offered a worrying glimpse of the less visible but long-lasting injuries US troops will likely sustain in future wars.

Five days after the assassination of Iranian Gen. Qassem Soleimani in a US drone attack in Baghdad, Iran made good on its threats to retaliate by launching 11 ballistic missiles at Al Asad air base on January 8, 2020.