US Was Informed of Imminent Attack Before Missile Strikes on US

The Swiss embassy in Tehran was informed as well. So we can assume that the US forces knew of the attacks in advance and could keep the damage as low as possible.

— Doofy the Duck? (@doofy_duck) January 8, 2020

https://www.usatoday.com/story/news/world/2020/01/08/us-officials-warned-missile-launch-iraq-bases-troops/2842200001/