There needs to be. Denmark could start by shipping person-portable antitank and antiaircraft weapons to Greenland, preparing as in the start of the Ukraine war for a guerrilla opposition.

To the South, Panama could request assistance from their neighbors to defend the Canal zone-and threaten to close the canal to US shipping or even block it outright when the first US boot touches their soil.

Canada is a large nation and with help from insurgents inside the US should be able to hold their own at least in a guerrilla war. They might also get assistance from First Nations tribes that don't want to be ground under Donald Trump's bootheels, but that's a maybe due to Canadian resource colonialism directed at First Nations people.

If Trump can be baited into launching these attacks simultaniousy, his forces will be divided in a 3-front war.

Also note that most of the forces the US would be fighting have the same weapons as the attackers, giving technical parity or close to it, again rather like Ukraine.

nope. There was.

World War III here we come. It's teachers I feel sorry for. Teachers and parents. Imagine having to teach children that it's wrong to take what isn't yours and having to field questions like "but what about Greenland?"

Poland 1939 Greenland 2025. Trump really is another Hitler

I can't believe there are conversations, on public record, about invading the territory of a NATO ally. It just beggers belief.

This needs to be done NOW. Tanks are heavy and usually have to be moved by ship.

That takes time. Even fighter jets have to be ferried across thousands of miles of ocean with tanker support all the way.

A public threat by NATO to expel the US and invoke Article 5 could probably nip this in the bud.

I agree bit unfortunately the world leaders seem to think it's just another day at the office.