Doctors without borders stay save by having a pledge that they will help assist victims of natural or man made disasters and that they will help anyone no matter gender race or religion this means (doctors to ever one )
They also have a no gun policy so they are not viewed as a threat. The most important part they DONT PICK SIDES !!!!!!
They can close a case for many reasons; the war has stoped and they do not need the help. An outbreak has passed or worse it is too dangerous like in Somaila where staff had been killed.
Why are doctors without Bordersinport Well in west Africa doctors without borders came and set up camp here are some of the jobs they do Nurse Doctor And Manny more but if they weren't there meany more people would have died !