 Complete the following phrase:  In 1989, units of the 5th Division, based at Fort Polk, Louisiana, deployed in support of Operation Nimrod Dancer to protect American interests in Panama. First Battalion, 61st Infantry Mechanized, Roadrunners 1st Brigade, 5th ID was one of the first reinforcing units and remained there until September when there was a hand over to 4th Battalion, Sixth Infantry Mechanized, Regulars 2nd Brigade, 5th ID. 46 Infantry was in country and assisted during 