James Dunnigan notes: "The U.S. Army, which is taking the bulk of the casualties in Iraq, is still getting more volunteers than it needs. Standards have remained high, but the numbers needed have gone up as well. With over 6,000 casualties in Iraq during the last year, the number of new troops needed this year has been increased from 72,000 to 77,000. Most of the wounded troops return to duty, but all are out of action for days, or months, or forever in the case of the dead and crippled. This is all uncharted territory for the army, as it has been over 150 years since it was in a long war with an all-volunteer force."