President Lee Myung-bak made a special address to the nation with his announcement detailing a wide array of government-level countermeasures to North Korea.
First of all, North Korea should put an end to its infamous behavioral patterns.
On the surface, what South Korea wants from the North is only an apology and punishment of the people involved in the Cheonan sinking. Until these requests are fulfilled, the South Korean government plans to push forward a series of tough policies including cutting off the existing sea lanes between the two countries, restriction of bilateral exchange, international sanctions, resumption of psychological warfare, intensified control of additional military provocations and more active participation in the Proliferation Security Initiative to stop trafficking of weapons of mass destruction.
In addition, the United States is preparing to launch new financial sanctions toward North Korea, and Japan and the European Union are set to follow suit.