When France was invaded, Berline joined the Resistance, but in May 1941 Berline was arrested in the Billet Vert operation and interned as a Russian Jew in Compiègne camp. He continued to produce work, mainly pastels, focusing on the beauty of nature, in an attempt to transcend the camp experience through art. These paintings were shown in the camp along with other artists' work. After seven months he was transferred to Drancy internment camp, and from there to Auschwitz, as was his wife Doucia—never to return. His works are included in the art collection of the Ghetto Fighters' House Museum and the Musée d'Histoire Contemporaine in Paris.