London | Donald Trump jnr, the eponymous son of the incoming US president, jetted into Greenland on Tuesday (Wednesday AEDT) – seemingly to do a spot of window-shopping for his father, who covets the vast, mineral-rich territory owned by Denmark.

The younger Trump took his dad’s trademark black Boeing 757, known as Trump Force One, for a flying visit that already looked likely to inflame tensions with NATO ally Denmark – and that was before Trump snr poured petrol on the issue.