The Korean peninsula itself has remained split since the 1950-53 war that pitted the United States and its Western allies against a pre-industrial China."Establishing a line like that is really not a good idea -- it's politically bad -- but on the other hand, having a war with China is even worse, I think," Bennett said. "And so ultimately we may have to create a line that says the Chinese won't go south, we won't go north," he said