The system of medical support in the territory of military operations in Iraq and Afghanistan is based on four levels of medical treatment. Level 4 is organized outside the war theatre, in the territories of the countries that are a part of the stabilization forces of international organizations (NATO). Both the tasks and the structure of medical support are adjusted to fit the requirements of the U.S. Forces. The same tasks and structure are also recognized by medical services of other NATO countries participating in military operations in Iraq and Afghanistan. Each subsequent level of medical support is progressively more highly specialized and capable of providing more advanced medical treatment in comparison to the preceding level. Medical evacuation is executed either by air or overland depending on the type of illness or injury as well as the tactical situation prevailing in the combat zone. The aim of this paper is to present the planning, challenges, and problems of medical assistance in the contemporary battlefield.