Complex sentence: On 18 May 2006, the U.S. military announced it was using lasers "dazzler" mounted on M-4 rifles in troops in Iraq as a non-lethal way to stop drivers who fail to stop at checkpoints manned by American soldiers.
Split into simpler sentences: On 18 May 2006, the U.S. military announced it would issue dazzling lasers designed to be attached to M-4 rifles to troops in Iraq. This weapon is intended to provide a non-lethal way to stop drivers who fail to stop at checkpoints manned by American soldiers.