President Donald Trump has mulled territorial expansion via Greenland, Canada and Venezuela during his second term. But of the three, he comes back to Greenland most often.

Donald Trump said Greenland should be controlled by the US, citing security concerns, as his remarks renewed tensions with Denmark and NATO allies.

Greenland's positioning between the U.S., Russia, and Europe makes it a strong geopolitical asset, and Trump has long argued that Denmark cannot be relied upon to protect the…