That morning in Sofia, the newspapers officially announced that Bulgaria had signed the Tripartite Pact. King Boris supported, like Hungary and Romania, the troops of the Anchluss, the fascist empire and the Japanese empire. The press also spoke of the secret agreement concluded twenty days before by the German Marshal Von List and the generals of the Bulgarian Army, which granted Hitler's troops free passage through the Balkan territories in their campaigns against Yugoslavia and Greece. Six hundred and eighty thousand German soldiers will cross Bulgaria ... Partisans is a story belonging to the World War II collection, a series of war novels developed in World War II.