CLEAN : Russia: a historic parade of 1941 on the Red Square

The video tutorial covers various topics, starting with the concept of disappearance, moving through discussions on oceans and royal surroundings, insights on school and making deals, exploration of concerts and garden settings, and finally addressing translation issues and national whistles.

What imagery is evoked by the statement 'surrounded by three royal'?

Discuss the significance of the phrase 'inertia rodena' in the context provided.