The United States and China are in a heated tit-for-tat over port fees, potentially igniting further maritime chaos. Here's what you need to know:

• US initiates charges for Chinese ships docking at its ports.
• China retaliates with sanctions targeting US businesses.
• Market reactions: Significant drops in shares of affected companies.
• Experts warn of escalating trade tensions affecting global shipping.
• This conflict may signal the next front in the ongoing US-China trade war.

Here's the full scoop.