Hello from CNN I'm Joe Beck with the five things you need to know for Tuesday

December 26th. As war and unrest continue in the Middle East the US has

carried out airstrikes on three facilities targeting militants in Iraq

after an attack yesterday on an American air base. President Joe Biden ordered the strikes,

which the Iraqi government described as hostile acts

that threatened its relationship with the US.

CNN's Natasha Bertrand has more.

This is really, you know, coming as the Iran-backed Shia militias escalate their attacks against US forces in Iraq and Syria and yesterday we saw the

Iran-backed group Kataib Hezbollah attack a US base that resulted in three injuries to US

personnel including one critical injury so this was really something that the

US clearly felt they needed to respond to and Biden decided to go with the option to

strike three facilities that are used by Kataib Hezbollah in Iraq and

Central Command has said that it is likely that several militants were actually killed in this strike by the US,

however it is not known at this point or is unlikely that there were any civilians that were injured.

The crisis at the US-Mexico border is also being felt thousands of miles away.

Police in Illinois say two buses from Texas dropped off more than 90 migrants in a Chicago suburb over the weekend, who were then moved by train into the city.

Earlier this month, Chicago reported more than 26,000 people arrived from Texas in the past 16 months.

This comes as there's been an increase in people arriving at the southern border,

including in Eagle Pass, Texas.

CNN's Rosa Flores says a senior customs and border protection official tells her the agency is dealing with a lot.

They say that there's still much illicit activity happening.

Smugglers still pushing migrants to cross into the

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