Mohammad Baqer Saad Dawood al-Saadi allegedly pledged thousands of dollars to someone he thought would carry out an attack against a synagogue in New York.
There have been more than 150 rocket and drone attacks on U.S. bases in Iraq and Syria since mid-October carried out by Iranian-backed militias claiming they are in support of Palestinians in the Israeli-Hamas war in Gaza.
The attack was one of the largest-scale ballistic missile attacks to date that the US has seen carried out by Iran-backed militias in Iraq
US forces killed at least five Iran-backed militia members in a drone strike after the US "identified an imminent attack" was likely to be launched by militia forces in Kirkuk, Iraq, on Sunday, a US official said.
"Between October 17 and November 7 ... U.S. forces have been attacked at least 40 times," Deputy Pentagon Press Secretary Sabrina Singh said on Tuesday.
Department of Homeland Security Secretary Alejandro Mayorkas held a special naturalization ceremony in Los Angeles Wednesday and welcomed 50 new U.S. citizens.