President Park Geun-hye is seeking talks to make reunions between families separated by the Korean War a regular fixture and allow them to communicate by letter and video link.
"The reason I proposed regular reunions of separated families... is that many families do not have time to wait any more. Many members of separated families have died with unresolved grievances," Park said in a Cabinet meeting Tuesday.
In a speech marking Independence Movement Day on Sunday, Park pointed out that Korea remains the "only divided country in the world" where separated families on both sides of the border are unable to see each other.
She said the reunions also need to be expanded to include more than 6,000 people per year to allow all remaining separated families to meet at least once before they die.
Park added that the more South Koreans want reunification, the more they need to prepare for it. Last month, she proposed setting up a special presidential committee to prepare for reunification, which she describes as a potential economic "bonanza" not only for South Korea but neighboring countries.