North Korea had seemingly loosened World War 3 tensions by engaging in diplomatic talks with its neighbours in the South and agreeing to send athletes to the winter games across the border.
However, General Keane has urged people to remember the danger posed by the hermit nation and its despot leader Kim Jong-un.
Speaking to Fox News, the US Army veteran suggested the Winter Olympics could be used as a disguise for another test launch of one of Kim Jong-un’s ICBM rockets.
He said: “I think if he does something, it’ll likely be another missile test.”
Gen Keane added he is “speculating” about “one of the things” Kim Jong-un “could do”.
“I think he is getting out of this what he wanted,” he added.
“He uses negotiations to promote good will, and it’s obviously not going to work, trying to drive a wedge between South Korea, the United States and Japan, which is not going to happen here.
“I don’t think he’s going to do anything that is going to damage that good will that he currently has as a result of these negotiations.”
However, the goodwill built up through negotiations could be unravelling after North Korea abruptly cancelled a cultural event scheduled to be held with South Korea.
The event, part of a series ahead of the PyeongChang Winter Olympics, was scheduled for February 4 at Mount Kumgang in North Korea.
It has since been cancelled, with a telegram from North Korea reportedly blaming “biased” and “insulting” media coverage in South Korea.
Seoul has the decision was “regrettable” and urged the North to uphold all the agreements that had been made.