Trump’s Greenland deal: A triumph of optics?
It seems the new agreement may not be that 'new'.

The new agreement between the United States, Denmark and Greenland on the security of the Danish autonomous territory appears to be good news. It may finally put an end to nearly two years of repeated intimidation of Greenlanders by Washington and ensure that the stated red lines on territorial integrity and sovereignty are not crossed.
We still do not know exactly what the agreement contains, but the emerging picture is close to a best-case scenario for Denmark and Greenland. The dispute appears to have been moved back onto the diplomatic playing field, where questions of international law, investment and security policy can be handled.
At the same time, US President Donald Trump can present himself as a winner to his supporters, which was necessary to de-escalate tensions. His political allies and aligned media outlets are already praising his negotiating strategy, arguing that sustained pressure worked and left the US better placed to expand its military presence in Greenland — an area that is, admittedly, vital to US national security.
Second, the US president wrote: “No U.S. adversary can EVER have a base in Greenland, have a military presence in Greenland, or make sensitive investments in Greenland without our express written approval.” In other words, the US would appear to have gained a formal veto power that could block adversarial countries – such as Russia and China – from seeking to establish a foothold in Greenland. Examples from recent years suggest, however, that this was already largely the case in practice.