My mother was in ARP in London during WW2.
When she came to visit us in London (no longer living there herself) during the IRA bombing campaign of the 1970s-1980s, she said she felt more uneasy and liable to fear than she had in 1940.
Partly because she was older, partly she no longer felt like a local - but also because (as she said) it felt worse because it was terrorism rather than war. She couldn't fully explain or rationalise the difference in sensation, but nor could she explain it away.