Using a Gestetner duplicator hidden in his great-aunt's attic, Brocq was able to secretly circulate news concerning the war without alerting the German forces and Jersey's collaborationist authorities. When the Nazis brought both Soviet and Spanish Republican POWs to Germany to build the Atlantic Wall, Brocq's resistance cell was able to translate into Russian the news of Soviet Red Army victories in Kursk and Stalingrad, greatly improving their morale. To further increase the morale of Soviet POWs, they also printed and distributed bulletins in Russian.