London During And After Firebombing

The transcript describes a 1940 Nazi air raid on London, drawing parallels to the Great Fire of 1666. Despite the destruction, the Union Jack flies over the ruined Guildhall, and Saint Paul's Cathedral is miraculously spared. The narrator recounts a personal experience during the raid, highlighting the targeted attack on London's financial district. German strategy is noted, with incendiaries causing significant damage, but firefighting efforts are underway.

What does the Union Jack flying over the Guildhall symbolize?

What was the significance of the area covered by planes during the air raid?