[Kizzy]

That period in history was long and bloody, I have family stories handed down as have a lot of people.
I value diplomacy, I prefer those to speak first and bomb later. Knowing what we know of Corbyn I have no reason to believe that is not what he advocated during his meetings. He was not the first MP to have held talks and nor was he the last.

Do I feel that his support at that time should prevent him from becoming PM? No.
There are leaders going back generations as well as very recent ones who have links to tyrants and inhumane regimes. They all have to be held to the same standard or none.