Remember when the Pentagon pointed out how the Chinese militarized it's "fishing fleet'?
Gotta keep a sharp eye on these sneaky bastards - https://www.wearethemighty.com/articles/pentagon-reveals-covert-chinese-fleet-disguised-as-fishing-boats/
Could the Suez be diverted? A gigantic ship helping block flow might help.
That was my first thought about who is in those containers.
How many chinamen can you fit into 20,000 shipping containers?
Gorillions