MUNICH by Robert Harris
Loved this. Not really my normal book, far less action than I'm used to and a lot more reliant on dialogue to really push the story forwards. But it's pulled off really well.
The main thrust of the plot leads to a meeting between Hitler and Chamberlain just before the outbreak of WWII, with the British PM desperate to avoid a major conflict. Two main POV characters, one from each side, who know each other from university, are thrust back together as the two great men meet face to face in Munich. I found it to be compelling, gripping and utterly fascinating.
*Big shout out to the narrator who performs it beautifully, makes all the difference.