A group of M1A1s (Abrams Main Battle Tank) enter the Twin Bridges training area prepared for a mock battle in the Republic of Korea Nov. 2, 1998. The M1A1s come from the Task Force, 1ST Battalion, 23rd Infantry Division out of Ft. Lewis, Wash. TF 123 is conducting an assault on two Infantry companies from a Republic of Korea armored brigade in participation of Foal Eagle '98. A combined exercise involving the Republic of Korea Army and the United States Armed Forces