In the background of the Demilitarized Zone, behind the wires and fencing are two countries, two sides, two telephones and one talk to barter peace in the peninsula that has been split since their ceasefire in 1953. 

The Unification Ministry of South Korea, employing hundreds of analysts and specialists and with a $1.02B budget, has worked to approach peace through many dimensions: military, culture, education, etc. 

However, despite a two-year hiatus between the two countries' telephone hotline, the ministry is facing an "intractable" task: garnering unity among brothers who look increasingly different from one another. Among younger generations, unity is less popular than among those who remember a single country peninsula.  

Read more here: http://www.cnn.com/2018/01/06/asia/south-korea-unification-ministry-intl/index.html