 In November, armistice talks began at Brest-Litovsk, the headquarters of the German high command on the Eastern Front, with the Russian delegation being led by Trotsky and Adolph Joffe.Meanwhile, a ceasefire until January was agreed.During negotiations, the Germans insisted on keeping their wartime conquests—which included Poland, Lithuania, and Courland—whereas the Russians countered that this was a violation of these nations' rights to self-determination.