Operación Úrsula. El misterio del submarino C-3

The documentary focuses on the Republican submarine C-3, which was sunk by a torpedo from U-34 on December 12, 1936. It highlights the international secrecy and political maneuvers that characterized this period. As a documentary, it appeals to those interested in military history and the Spanish Civil War, offering insights into a lesser-known naval conflict.

This film may be particularly relevant for collectors who focus on historical documentaries, military operations, and the impact of war on international relations. It provides a detailed look at the intricacies of submarine warfare and the geopolitical landscape of the late 1930s.