Quote Originally Posted by William F. Owen View Post
Not an act of War. NK merely breached the cease fire. It is at War with the South. You may want to bring yourself up to speed on North Korean Chinese relationships.
Exactly, they are still at war therefore sinking a naval ship of the other side with a torpedo is an act of that ongoing war.

In a wider strategic context look at how US actions in Vietnam were shaped by issues concerned with Chinese intervention. China is strategically relevant. What is so hard to understand about that?
Its a proximity issue. China certainly does not want the US navy (carriers and all) hovering around close to its territorial waters on navy maneuvers or patrols. Who can blame them (certainly after the US had the Monroe doctrine).

The question is to what extent the US will kowtow to China on this matter.