In Wehrmacht, the direct medical care for wounded soldiers on the battlefield was provided by medics who were part of platoons, companies, and battalions. They could be distinguished from ordinary infantrymen by their special medical pouches, additional water flasks, patches, and armbands. They were also able to evacuate the wounded to first aid stations or collection points. Infantry companies also included non-commissioned officers of the medical service, and at the battalion level, a military doctor (Assistenz or Oberarzt) was responsible for centralized medical care. However, it was not possible to carry out serious medical operations in the battalion; this was the responsibility of the divisional medical service, which could also include sanitary convoys that were engaged in the centralized transportation of the wounded.