North Korea has destroyed the last unused roads connecting it to South Korea, escalating tensions between the two countries. Kim Jong-un's government vows to sever relations and abandon peaceful unification, while South Korea condemns the actions as regressive. Observers believe a full-scale attack is unlikely due to potential retaliation from the U.S. and South Korea. The destruction is seen as a political message, following a history of similar actions by North Korea in response to diplomatic tensions.