Question: When did the country that neighbors the nation where Deoksancheon can be found call an end to the armistice?

Deoksancheon is a river of South Korea. It is a tributary of the Hongcheon River in the Han River system. The river is located in a high altitude area. There are alluvium deposits along the lower end of the stream. <SEP> South Korea is located in East Asia, on the southern half of the Korean Peninsula jutting out from the far east of the Asian land mass. South Korea is mostly surrounded by water and has 2,413 kilometres (1,499 mi) of coast line along three seas; to the west is the Yellow Sea (known in Korea as West Sea), to the south is the East China Sea, and to the east is the Sea of Japan (known in Korea as East Sea). Geographically, South Korea's land mass is approximately 100,032 square kilometres (38,623 sq mi). 290 square kilometres (110 sq mi) of South Korea are occupied by water. The approximate coordinates are 37 ° North, 127 ° 30 East. Notable islands include Jeju Island (Jejudo), Ulleung Island (Ulleungdo), and Liancourt Rocks (Dokdo, known in Japan as Takeshima). The only country with a land border to South Korea is North Korea, lying to the north with 238 kilometres (148 mi) of border running along the Korean Demilitarized Zone. <SEP> After a new wave of UN sanctions, on 11 March 2013, North Korea claimed that it had invalidated the 1953 armistice. On 13 March 2013, North Korea confirmed it ended the 1953 Armistice and declared North Korea "is not restrained by the North-South declaration on non-aggression". On 30 March 2013, North Korea stated that it had entered a "state of war" with South Korea and declared that "The long-standing situation of the Korean peninsula being neither at peace nor at war is finally over". Speaking on 4 April 2013, the U.S. Secretary of Defense, Chuck Hagel, informed the press that Pyongyang had "formally informed" the Pentagon that it had "ratified" the potential usage of a nuclear weapon against South Korea, Japan and the United States of America, including Guam and Hawaii. Hagel also stated that the United States would deploy the Terminal High Altitude Area Defense anti-ballistic missile system to Guam, because of a credible and realistic nuclear threat from North Korea. <SEP> the soviet regime first came to power on november 7, 1917, immediately after the russian provisional government, which governed the russian republic, was overthrown in the october revolution. the state it governed, which did not have an official name, would be unrecognized by neighboring countries for another five months. <SEP> in 1992, yitzhak rabin became prime minister following an election in which his party called for compromise with israel's neighbors. the following year, shimon peres on behalf of israel, and mahmoud abbas for the plo, signed the oslo accords, which gave the palestinian national authority the right to govern parts of the west bank and the gaza strip. the plo also recognized israel's right to exist and pledged an end to terrorism. in 1994, the israel–jordan treaty of peace was signed, making jordan the second arab country to normalize relations with israel. arab public support for the accords was damaged by the continuation of israeli settlements and checkpoints, and the deterioration of economic conditions. israeli public support for the accords waned as israel was struck by palestinian suicide attacks. finally, while leaving a peace rally in november 1995, yitzhak rabin was assassinated by a far-right-wing jew who opposed the accords.