What were some of the ways that the waring nations tried to protect their archives, national treasures, or valuable artifacts?

[avalantis]

Nazi plunder, art theft and looting

An article in a Greek news site, on April 22, summarizing the Nazi looting of Greek Antiquities during WW2. Here is the translation: On 12 October 1944, the last German occupation troops left Greece, and thousands of citizens flooded the streets, celebrating. Alongside the attempt to rebuild a destroyed country, another effort began. Underneath the blood-soaked soil, some archaeologists tried to dig up what they attempted to save from the very first day of the war. Monuments and antiquities t…