Why does ernie use both positive and negative words to describe the blitz

 The Blitz Source Based The Tone and language of Source A conveys that the author believes it was a period to be proud of and also suggests that the Blitz was a period of celebration rather than a destructive time. This is supported by words like “Unshakeable determination” this suggests that even though the British people were bombarded with constant bombing they never gave up 
Source: http://www.123helpme.com/search.asp?text=blitz

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