Viking raids continued until in 850, then the "Chronicle" says: "The heathen for the first time remained over the winter". The fleet does not appear to have stayed long in England, but it started a trend which others subsequently followed. In particular, the army which arrived in 865 remained over many winters, and part of it later settled what became known as the Danelaw. This was the "Great Army", a term used by the "Chronicle" in England and by Adrevald of Fleury on the Continent. The invaders were able to exploit the feuds between and within the various kingdoms and to appoint puppet kings, such as Ceolwulf in Mercia in 873 and perhaps others in Northumbria in 867 and East Anglia in 870. The third phase was an era of settlement; however, the "Great Army" went wherever it could find the richest pickings, crossing the English Channel when faced with resolute opposition, as in England in 878, or with famine, as on the Continent in 892. By this stage, the Vikings were assuming ever increasing importance as catalysts of social and political change. They constituted the common enemy, making the English more conscious of a national identity which overrode deeper distinctions; they could be perceived as an instrument of divine punishment for the people's sins, raising awareness of a collective Christian identity; and by 'conquering' the kingdoms of the East Angles, the Northumbrians and the Mercians, they created a vacuum in the leadership of the English people.