In a speech at the UN General Assembly earlier this week, South Korean President Moon Jae-in reiterated his calls for the end-of-the-war declaration that he said could help achieve denuclearization and lasting peace on the Korean Peninsula.

North Korean Vice Foreign Minister Ri Thae Song dismissed Moon’s call as premature so long as US policies were unchanged.

“It should be clearly understood that the declaration of the termination of the war is of no help at all to stabilizing the situation of the Korean Peninsula at the moment but can rather be misused as a smokescreen covering up the US hostile policy,” Ri said in a statement carried by state media.

He said American weapons and troops deployed in South Korea and its vicinity and regular US military drills in the region “all point to the US hostile policy toward (North Korea) getting vicious day by day.” North Korea has also long described US-led economic sanctions as proof of US hostility against the North.

South Korea’s Unification Ministry responded later Friday it’ll continue its efforts to adopt the end-of-the war declaration and strengthen cooperation with related countries. Cha Duck Chul, a deputy ministry spokesman, said declaring the war’s end would be “a very meaningful step” as it could be a starting point for peace negotiations and denuclearization on the peninsula.

The Korean War ended with an armistice, not a peace treaty, leaving the peninsula in a technical state of war. North Korea has steadily wanted to sign a peace treaty with the United States to formally end the war and for subsequent improved relations. Some experts say the peace treaty could allow North Korea to demand the United States to withdraw its 28,500 troops in South Korea and ease sanctions.

Both Koreas had called for an end-of-war declaration to be made and a peace treaty to be signed during the period of diplomacy with the United States that began in 2018, and there was speculation then-President Donald Trump might announce the war’s end in early 2019 to convince North Korean leader Kim Jong Un to commit to denuclearization.

No such announcement was made as the diplomacy faded to a stalemate over easing the sanctions in return for North Korea denuclearizing. In late 2019, North Korea said the nuclear crisis won’t be resolved if the United States sought to persuade it to return to the talks with a proposal on the war-end declaration without withdrawing its hostile policy.

In recent months, Kim has warned that North Korea would bolster its nuclear arsenal and introduce more sophisticated weapons systems unless the United States drops its hostile policy. Last week, North Korea conducted its first missile tests in six months, demonstrating its ability to launch attacks on South Korea and Japan, two key US allies where a total of 80,000 American soldiers are stationed.