In June 1917 the New Zealand Division took part in the successful advance onto Messines ridge, in Belgium. Again, casualties were heavy. This wounded soldier is at the advanced dressing station (ADS) during the battle. The ADS was usually the second place to which the wounded were carried. The first was a regimental aid post, close to the front lines, where the wounded would be given light first aid and then carried to the ADS. The ADS was better equipped, but the conditions and treatment were still limited. The next stop was a casualty clearing station, usually a tented area several miles behind the lines. Operations might be carried out there. Finally, the men would be taken to a base hospital for long-term care. However, many never reached the hospital.