Earthquakes are response to the stress conditions in the crust. Over the last 10 years, seismologists have developed techniques to calculate secular, static and dynamic stresses that act on and between faults and have begun to understand how these stresses lead to earthquakes. In this session, we invite papers which describe all aspects of earthquake stress loading and interaction including interseismic loading and unloading due to earthquakes and both dynamic and static stresses. Papers dealing with long-term stress evolution and statistical characterization of seismicity in fault networks on which stresses have been modelled are particularly welcome.