This is the best summary I could come up with:

Among the concrete steps stemming from the move, Prime Minister Han Duck-soo said South Korea would immediately resume reconnaissance of the North's forces in border areas.

The so-called Comprehensive Military Agreement (CMA) signed between the two Koreas in 2018 was the most substantive deal to result from months of historic meetings between leader Kim Jong Un and then-South Korean President Moon Jae-in.

On the ground, both sides agreed to completely cease artillery drills and field training within 5 kilometres (3 miles) of the Military Demarcation Line (MDL) between the countries.

With inter-Korean and denuclearisation talks long stalled, recent drills and shows of force along the fortified border between the Koreas have cast doubts on the future of the measures, which were meant to reduce tensions.

South Korea's national security council said on Tuesday it planned to "suspend the effect of Article 1, Clause 3" of the 2018 military agreement, enabling Seoul to restore reconnaissance and surveillance activities along the border.

South Korea's military will restart aerial surveillance in border areas, which had been conducted before the agreement was signed, the defence ministry said.

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