article_snippet.sent: Baghdad, Iraq (CNN)Hundreds of additional Iraqi troops are being sent to reinforce colleagues who are trying to fend off ISIS attempt to overrun Iraq's largest oil refinery, a key paramilitary force said Tuesday.
article_snippet.sent: additional Iraqi troops came from Camp Speicher, a fortified Iraqi base near the city of Tikrit, according to the media office of the Hasd Al-Shaabi militia.
article_snippet.sent: The reinforcements include two federal police regiments, an Iraqi military quick reaction force battalion and a regiment from Hasd Al-Shaabi, which is a predominantly Shia militia that worked with the Iraqi military as well as Sunni fighters to liberate Tikrit from ISIS about two weeks ago.