"Our interest is using voluntary agreements .... For us to articulate problems to them around nasty issues in the supply chain and the industrial base that allow them to communicate and work together, essentially collude," said Michael Cadenazzi, the assistant secretary of Defense for Industrial Base Policy.

Trump invokes the Defense Production Act to boost US munitions output, waive regulations on critical minerals, and hold defense contractors accountable.

"Our interest is using voluntary agreements .... For us to articulate problems to them around nasty issues in the supply chain and the industrial base that allow them to…