In the past, most mission work was done in rural areas. That made sense because most people lived in rural communities. But the biggest challenge is now in cities, and there we find the shortage of workers. Many missionaries are so disturbed by the noise and traffic in cities, pollution, social problems, crime and crowded housing, that they prefer working in rural areas. Unreached villages certainly need to hear the gospel. But in view of the masses of unsaved and unchurched people in cities, more attention must be given to urban centres.