The poem
All night the flares go up; the Dragon sings And beats upon the dark with furious wings; And, stung to rage by his own darting fires, Reaches with grappling coils from town to town; He lusts to break the loveliness of spires, And hurls their martyred music toppling down. Yet, though the slain are homeless as the breeze,
Vocal are they, like storm-bewilder'd seas. Their faces are the fair, unshrouded night, And planets are their eyes, their ageless dreams. Tenderly stooping earthward from their height, They wander in the dusk with chanting streams, And they are dawn-lit trees, with arms up-flung, To hail the burning heavens they left unsung.

it's unclear
I think that this poem is clear. It depicts dragons very well. It's very beautiful!
This poem isnt supposed to be beautiful. This poem is about World War I and how horrible it is. The dragons represent the fighter pilots and how they bomb amything and everything.