On the third and last day of general-grade military talks Thursday, the two Koreas will try to sign a military security guarantee agreement for inter-Korean roads and railways and finalize measures to prevent maritime clashes at the western sea border.

South Korea has proposed holding a new round of defense ministerial talks to discuss readjusting the sea border, but the North has insisted the issue be dealt during the ongoing talks.

However, the two sides are expected to sign the security guarantee pact as they agreed to begin test runs of two reconnected inter-Korean railways from next Thursday.

In talks Wednesday, the two parties simply reconfirmed their positions and failed to narrow differences on the agenda.

Pyongyang does not recognize the Northern Limit Line set unilaterally by the U.S.-led U.N. forces at the end of the Korean War in 1953. The North has long insisted that a new border be drawn further south of its coastline on the West Sea. In 1998 and 2002, the navies of the two Koreas fought bloody gun battles in the area that resulted in heavy casualties.

The inter-Korean railways were cut off in 1951, a year after the outbreak of the Korean War. A set of parallel cross-border roads have been in use since last year.

The talks, the fourth of their kind between the two Koreas, are being held at the border truce village of Panmunjom.