FORT DRUM-- New York Army National Guard Staff Sgt. Sergio Casanas, a human resources NCO for the 27th Infantry Brigade Combat Team and Sgt. David Nieves, also of the 27th BCT prepare to negotiate the land navigation course on May 11. More than 2,200 members of the 27th BCT are training at Fort Drum in May and June to prepare for a 2012 deployment to Afghanistan.