Precious art and artefacts are being destroyed in Ukraine. These experts are helping to save them

Numerous museums and cultural institutions have been destroyed during the invasion of Ukraine. (Supplied: Stanislav Ostrous)

In times of violent conflict, how can a country's cultural heritage be preserved?

This is a familiar issue in places such as Iraq, Afghanistan and Syria where monumental ancient ruins and sites, such as Palmyra and Aleppo's old city, have been extensively damaged by war.