Cover title. "May 2006." Part of the U.S. Army lessons learned documentation. "This Initial Impression Report (IIR) provides a summary of key emerging insights, observations, and lessons (OIL) and tactics, techniques, and procedures (TTP) from the 172nd Infantry, Stryker Brigade Combat Team 3 (SBCT 3) during their mission rehersal exercise (MRE) at the Joint Readiness Training Center (JRTC), rotation 05-07, which occurred 16-21 May 2005."--p. v.