Meir Henoch Wallach-Finkelstein, better known by the Russian name of Maxim Litvinov, was one of the major leaders of the Bolshevik Party and later the primary manager of Soviet diplomatic efforts in the interwar period, was a figure that Bruno deeply despised.
After all, it was his diplomatic efforts that would ultimately cause the iron curtain to befall over all of Eastern Europe. The Litvinov pact helped secure the doom of nations such as Poland, Latvia, Lithuania, Estonia, Romania, and Finland, all of which would either become subordinate to the Soviets via the dreaded Warsaw Pact or outright invaded militarily by the Soviet Union in the coming decades.
Peace was a lie. It was nothing more than an effect of smoke and mirrors. And often times peace was merely a way to buy time for more insidious endeavors. Something that Litvinov had promised these eastern European countries only to undermine their sovereignty or outright break his promises to them.