In March 2013, North Korea announced the abolition of all non-aggression pacts with South Korea. It also closed the border and the direct telephone line between the two Koreas.  North Korea also stated that it had the right to conduct a pre-emptive nuclear attack.  A UN spokesman said that the ceasefire agreement had been adopted by the UN General Assembly and could not be unilaterally dissolved by either North Korea or South Korea.  On March 28, 2013, the United States sent two stealth B-2 Spirit bombers to South Korea to participate in ongoing military exercises in the region, including dropping ammunition on a South Korean bombing room. It was the first non-stop B-2 tour from the United States to Korea.  Following this mission, North Korean media announced that they were preparing missiles ready to attack U.S. targets.  In May 2013, North Korea proposed to open negotiations for a peace treaty to replace the ceasefire agreement.    The ceasefire has always been designed as a temporary measure. Chinese and North Korean military commanders signed the agreement, with the U.S.-led U.N. command signing on behalf of the international community.
South Korea was not a signatory. The ceasefire remains the only protection of peace on the Korean peninsula. A telegram from Rochkin to Beijing in Moscow informing Soviet leaders of the conditions under which the Chinese will consider a ceasefire on the Korean peninsula. But this agreement was never concluded and a conference in Geneva in 1954, which was to refuse a formal peace agreement, ended without agreement. Telegram from Mao to Stalin, in which he advises on how to conduct ceasefire negotiations, according to him. War detention (POW) was an important and problematic issue in the negotiations.  The Communists held 10,000 prisoners of war and UNC 150,000 prisoners of war.  PvA, KPA and UNC were unable to agree on a return system because many VPA and KPA soldiers refused to be repatriated to the North, which was unacceptable to the Chinese and North Koreans.  In the final ceasefire agreement, signed on 27 July 1953, a return commission of the Neutral Nations, chaired by Indian General K. S. Thimayya, was established to deal with the issue.  Whether or not Eisenhower`s threats helped with nuclear attacks, until July 1953, all parties to the conflict were ready to sign an agreement to end the bloodshed.
The ceasefire signed on 27 July established a committee of representatives of neutral countries to decide the fate of thousands of prisoners of war on both sides. Eventually, it was decided that prisoners of war could choose their one-year destiny – stay where they were, or return home. A new border has been drawn between North and South Korea, giving additional territory to South Korea and demilitarizing the area between the two nations. The war claimed the lives of millions of Koreans and Chinese, as well as more than 50,000 Americans. It had been a frustrating war for the Americans, accustomed to forcing the unconditional surrender of their enemies. Many also did not understand why the United States had not extended the war to China or had used its nuclear arsenal. However, as government officials were well aware, such actions would probably have triggered the Third World War. The ceasefire also established rules for prisoners of war. The agreement stated that, on 28 April 1994, North Korea announced that it would cease to participate in the Military Ceasefire Commission, but would continue to contact Panmunjom through liaison officers and maintain the general ceasefire conditions.