In the "Blitz", German bombers were dispatched individually; alternately each "Gruppe" had been briefed to take off and bomb over a period of time extending anywhere up to ten hours during the darkest period.
In the "Blitz", German bombers were dispatched individually rather than in formation. Each "Gruppe" had been briefed to take off and bomb the target over a period of time extending anywhere up to ten hours during the darkest period.