What are 2 similes, metaphors, allusions in the Forbidden City by William Bell?

Simile:

"[...] the tanks barged in like ultimate anarchy was awaiting to be unleashed" pg. 119

"The marchers didn't quit. They kept it up, flowing, slowly, like cold syrup towards the square, hanging onto their posters and banners like drowning sailors" Pg. 85

Metaphor:

"I ran from the room, crying and cursing the murderers in uniform who were still murderering, and charged up the stairs and into my room."

"I tried to turn my head and felt an avalanche of pain thundering through my skull." Pg. 119