 Complete the following phrase:  The film reflects the following events of World War II: the capitulation of Friedrich Pauluss Sixth Army as a result of the failed assault on Stalingrad during Operation Blue in 1942; the preparation for revolt in Slovakia; negotiations of the Polish communists with Władysław Sikorskis government over their joint struggle against fascism; the creation of a National Committee of the Domestic Front in Bulgaria and preparation by underground workers-communists for armed revolt; expansion of the guerrilla partisan movement; the failure of a German attempt to destroy Peoples Liberation Army of Josip Broz Tito; one of the largest military operations, 