The remaining two Gruppen of JG 26 join the Geschwader in the Pas-de-Calais. The Second Gruppe is based at Marquise and the Third Gruppe is at Caffiers - both former British airbases during WWI. Whilst they have no permanent installations, they have large, well drained landing fields. As there are no revetments the aircraft are dispersed under trees or under netting. Maintenance is handled outside, operations are conducted from trailers and men are quartered in tents or nearby towns.