The Green Bell is an international organization originally created to help with battlefield relief, that expanded into more general medical care and the protection of the victims of war. They saw a lot of activity during the First and Second Great Wars.
Their existence and behavior are regulated by a series of international treaties that are accepted by both the Rigasian bloc and their Zhongguan counterparts.
Most of their workers are volunteers from all around the world, and tend to wear white with a large stylized green bell displayed somewhere.
In spite of the main organization trying to maintain total neutrality and not get involved in any political maneouvering, a number of parties have used it for their own ends, including espionage and rescue of political prisoners.