North Korea's aggressive nuclear threats has forced the US to put submarines armed with nukes in South Korea in a historic move.
Joe Biden and President Yoon Suk Yeol will sign an agreement today which will be a firm show support to Seoul amid growing concern over nuclear threats made by North Korea. It includes plans to have US nuclear-armed submarines dock in South Korea for the first time in more than 40 years.
The planned move, which is being dubbed the "Washington Declaration", is aimed at deterring North Korea from carrying out an attack on its neighbour.