Complex sentence: They must constructed in such a way so that the conditions are similar to those used by the Belligerent's own soldiers in base camps.The y must be located in healthy locations and away from the combat zone.
Split into simpler sentences: They must constructed in such a way so that the conditions are similar to those used by the Belligerent's own soldiers in base camps. The camps must be located in healthy locations and away from the combat zone.