1) Definition of humanitarian crisis: This article denotes a multitude of situations, all of which seem to have a drastic effect on human health and well-being. That being said, some crisis or armed conflicts are not deemed a humanitarian crisis. According to several sources, the definition is incredibly subjective, and must be event(s) which harm the health, safety, or well-being of a community or large group of people.
2) Humanitarian worker protections: At this time, there does not seem to be a true movement to legally prosecute those who harm humanitarian or aid workers. However, within the Geneva Convention and later Protocols, there are legal protections for non-combatants during armed conflicts; this is in addition to a UN Security Council Resolution (1502) which gives greater protection to aid workers, classifying attacks on them as a war crime.
3) Non-combatants: This is where definitions of humanitarian aid workers and their protections under both the Geneva Convention and UN Resolution fall apart. The current climate and disregard for international sanctions has left many aid workers at the mercy of those who do not recognize the UN or global entities. As such, they are faced with the choice to remain non-combatants (those who do not carry or use a weapon during a conflict) and most likely be harmed; or to carry defensive arms and proclaim themselves a combatant, and thus be a target. Hence, the difficulty in being a health care worker in an age of general militarization. This is also a topic heavily discussed in the book Trauma by Dr. James Cole. As a member of the special operations, Dr. Cole was always well within danger; he discusses the choice to carry or not carry a weapon, and how discharging the weapon (even in self-defense) changes the nature of the health care provider and their position in an armed conflict.