Many years ago, when I was 12 or 13, I asked my father what he did during the war. Without pause he replied, "Drank tea and smoked cigarettes." End of discussion. When the war in Europe ended in May 1945, my Dad had just turned 20. While he was living in an Ireland that had, just eight years earlier, drafted and ratified its own Constitution and rejected membership of the then British Empire, the people of neutral Ireland were very much affected by the near-cataclysmic events occurring on their doorstep.
I have mulled over his terse 'tea & cigs' response many times over the years, mostly as it became more apparent that the man had a history he did not want to share...and to his dying day, he didn't.
Small pieces of the puzzle have been filled in over the years. I'd prefer not to go into detail here about what he may or may not have done for his or another country in his younger years, mainly because what really happened during the period immediately following the war he took to his grave - and will likely remain as mere rumour, conjecture & occasionally fanciful wonderings. But everything I do know about my father leads me to believe he was, in some way, 'active'. As for my mother, I don't know. She died when I was very young, but she did work as a journalist in the days when that meant a lot more than it does now.