The use of atomic weapons

[V.8] There will be let loose living fire and hidden death, fearful inside dreadful globes. By night the city will be reduced to rubble by the fleet, the city on fire, helpful to the enemy

A very striking description of a nuclear missile and bomb attack from a fleet in the sea which reduces an unspecified city to rubbles within a night. The description of living fire and hidden death inside dreadful globes is quite an imaginative description of nuclear bombs.