I hope the US pushes back hard on this proposal because this is a total concession to North Korea which has few aircraft to fly along the DMZ compared to the US and ROK.  USFK should be respond by saying that North Korea should withdraw all of their artillery 80 miles away from the DMZ if they want this no fly zone.  Now that would be a more equitable agreement:

The Freedom bridge cross the Imjin river. It is a former railroad bridge which was used by repatriated POWs/soldiers returning from the north. The only bridge connecting South and North Korea at the Demilitarized Zone.

Last month, North and South Korea signed an agreement that is designed to de-escalate tension at the demilitarized zone between the two nations, which have technically been at war since the 1950s. One major feature: a no-fly zone over the border.

At the time, some South Korean government officials called the agreement the “equivalent to declaring an end to the Korean War.” But the call for a no-fly zone over the Korean demilitarized zone (DMZ) is facing pushback from the South’s biggest backer, the United States.

Last week, South Korea’s Foreign Minister Kang Kyung-wha told reporters that U.S. Secretary of State Mike Pompeo expressed “discontent” with the agreement during a phone call. This week the pushback seemed to escalate as unnamed officials told Reuters that U.S. military commanders are specifically unhappy with the no fly zone, which is to begin on November 1.

So why is the U.S. so upset?   [Popular Mechanics]

You can read the rest at the link, but the reason for the displeasure is because US helicopters and fixed wing aircraft routinely train in the border areas.  The proposed no fly zone would extend any where from 25-50 miles from the DMZ making this training impossible and further eroding the readiness of US forces.

This proposal gets back to what I have been saying for months, the Moon administration will not openly say they want US forces to leave, but will create conditions that will make US forces withdraw on its own accord.  If this agreement is implemented this is just another example of this strategy