(CNN) Donald Trump may enter the history books Sunday as the first serving US President to step foot in North Korea -- but he'll also be handing its dictator Kim Jong Un a propaganda victory.

Despite Trump's efforts to make the moment appear a casual coincidence, it has in fact been well choreographed.

The world woke Saturday to a Tweet from Trump saying: "After some very important meetings, including my meeting with President Xi of China, I will be leaving Japan for South Korea (with President Moon). While there, if Chairman Kim of North Korea sees this, I would meet him at the Border/DMZ just to shake his hand and say Hello(?)!"

"All I did was put out a feeler if he'd like to meet," Trump told reporters at the G20 a little later.

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