Right, Ed -
Few people mention it but it is true that the US in Korea has stopped ROKA hotheads from starting up the war - several times even after Rhee was kicked out. The poor GIs in Korea have to watch their backs and keep a tight leash on their native ally. NK calls ROKA a 'puppet' army but Kim Jung Il should be grateful for the Yanks managing this 'puppet army'.
A recent MBC documentary showed that ROKA tried to march north during Operation Paul Banyan (sp? - the Poplar Tree Axe Murder Incident). Cool heads in Pyongyang and Washington foiled the ROKA plot. Park Jung Hee ordered a special forces unit into the area with the standing to "shoot first, ask questions later" and shoot they did. The US military did not go along and got in touch with NK to work things out.
It is also true that there were times when Washington wanted to start up the war (e.g., Bill Clinton's plan to bomb NK nuke shops) but SK gov said no - over my dead body (Pres. Kim Young Sam). Kim Dae Jung is trying to face down Bush.
BTW, a daughter of Park Jung Hee, the man who had tried so hard to restart the war and tried to kill Kim Il Sung, is going to Pyongyang (this week, I believe).