The Department of Defense is calling up nearly 600 more Iowa National Guard members for duty overseas. Guardsmen from two units are being called up to serve in Iraq. The First Battalion 133rd Infantry is based in Waterloo and has units in Dubuque, Oelwein, Iowa Falls and Charles City. 535 soldiers from that outfit are being mobilized, along with another 40 members of the First Battalion 194th Field Artillery. It’s based in Fort Dodge with units in Storm Lake, Spencer, Algona and Estherville. It’s expected the two battalions will be activated in October for training at Camp Shelby, Mississippi, then they’ll head to Iraq. They’ll likely be gone a total of 18 months.