Who is Brigadier Duff Smith from Black Cross and what is their importance? Black_Cross_(novel) English & Literature Brigadier Duff Smith | Black Cross

Brigadier Smith is a man in his fifties with one arm and a warfare mindset. He has received information of the Nazi use of new chemical weapons and a sample of Sarin. His friend, Winston Churchill, has entrusted Duff to find a way to prevent the Nazis from using this chemical against the Allied Forces. He has spoken to Mark McConnell for years on the matter of creating offensive weapons but has been declined. He clearly admires McConnell's mind but fully believes in sacrificing a few people in order to save many in the times of war. In order to obtain the results he needs, Smith manipulates Mark into a situation that Mark regrets for the rest of his life.