“There is no basis for deciding borders by force and we have agreed on this that these borders should not be decided by force or by propaganda or inflammatory claims,” Kiir said.
Kiir was also giving a statement on the agreement reached between the two nations last month and urged the August House to ratify the deal.
Juba and Khartoum beside border demarcation, also struck deal on resumption of oil in South Sudan, security arrangements, and a cooperation agreement.
The two failed to strike any deal on Abyei and disputed areas.
President Kiir also called for public support on the implementation of the deal and reiterated the government commitment to ensure that all the post secession issues are addressed in a peaceful manner with Khartoum.
The Sudanese government has already passed the deal prior to its agreement between the two nations in Addis Ababa.
Kiir explained that much as some South Sudanese have become critics of the deals, the agreement was reached in a mutual understanding with the aim of creating peace and stability between the two countries.
The two nations reached a brink of war in an attempt to militarily sort out their differences in April this year.