What was the Blitz?
What argument are you answering?
What is your opinion?
Paragraphs - one on Reality, one on Not a Reality (2-4 sources for each paragraph)
Evidence from source
Explain why it means Blitz was a reality/not a reality
Evaluation of when written and by whom to explain whether it strengthens or weakens your argument (a source can be obviously supportive on one argument, but because of when it was written and who by, it can weaken how true (reliable) it is)
Conclusion - READ THE Q - Answer it. How far spectrum?