The Biden administration is in talks with Vietnam over an agreement for the largest arms transfer in history between the ex-Cold War adversaries, according to two people familiar with a deal that could irk China and sideline Russia.

A package, which could come together within the next year, could consummate the newly upgraded partnership between Washington and Hanoi with the sale of a fleet of American F-16 fighter jets as the Southeast Asian nation faces tensions with Beijing in the disputed South China Sea, one of the people said.