Thus, the most decrepit of the K62-class diesel locomotives were converted to electric locomotives by replacing their diesel engines with electric motors, resulting in the Kanghaenggun-class (강행군, "Forced March"), the first eleven of which were put into service on electrified trunk lines in 1998. For propaganda purposes, these were announced as being new domestically produced locomotives. This was not the only case in which refurbished equipment, or equipment bought second-hand from overseas, was reported as new domestic production: the tram system opened in Ch'ŏngjin in 2002 was announced as using domestically built tram cars (they were in fact bought second-hand from the Czech Republic), and the used passenger cars bought from BLS Lötschbergbahn of Switzerland in the same year were reported as having been built by factory workers in their free time. From 1998, measures to improve economic management and to build a "Strong and Prosperous Nation" were implemented, and slowly the situation in North Korea began to improve - especially as a result of South Korean President Kim Dae-jung's Sunshine Policy of rapprochement with the North. In July 2000, talks began between the two Koreas to discuss the reopening of the former Kyŏngŭi Line that once ran between Seoul and Sinŭiju via P'yŏngyang; this line is now split between the P'yŏngŭi Line in the north running from Sinŭiju to P'yŏngyang and the P'yŏngbu Line from P'yŏngyang via Kaesŏng to the Korean Demilitarized Zone, and Korail's Kyŏngŭi Line, which runs from the DMZ via Torasan to Seoul. Work in the South began almost immediately, and service was restarted on the Munsan–Imjingang section of on 30 September 2001, and on the Imjingang–Torasan section on 12 February 2002. Groundbreaking ceremonies took place in September 2002 for the reconstruction of the Kaesŏng–Torasan section across the DMZ and the reconnection of the former Tonghae Pukpu Line on the east coast, which is presently split between the North's Kŭmgangsan Ch'ŏngnyŏn Line from Anbyŏn on the Kangwŏn Line via Kŭmgangsan to the DMZ, and the southern section of the former Tonghae Pupkpu line from the DMZ to Chejin.