The U.S. plans to sell $675 million in new military equipment to South Korea, the State Department said on Friday.

The announcement — which includes spare parts, testing and training equipment, and “support and services” for Seoul’s F-35 fighter jets — comes as Washington and Seoul remain locked in a dispute over the issue of “burden sharing,” or how much money South Korea should have to pay for the U.S. military presence on the peninsula.

President Donald Trump and his negotiators have demanded billions of dollars in additional payments from the South, which critics say are unwarranted and may damage