Who is Kataib Hezbollah, the group the US attacked in Iraq and Syria?
Hezbollah is one of the most important of the pro-Iranian militias in Iraq and a group with an extensive role in the Middle East..
Iraqi Shi'ite Muslim men from the Iranian-backed group Kataib Hezbollah wave the party's flags as they walk along a street painted in the colours of the Israeli flag during a parade marking the annual Quds Day, or Jerusalem Day, on the last Friday of the Muslim holy month of Ramadan, in Baghdad(photo credit: THAIER AL-SUDANI/REUTERS)BySETH J. FRANTZMAN