Well, with Iceland it was middle of WWII and the Nazis had occupied Denmark ("see, you can't even defend 

, let alone Iceland!) and the international community was too busy with war.

Politics_And_Law

The US Regime Might Finally Support Secession—But Only for Greenland

Rothbardian_fanatic

Well, with Iceland it was middle of WWII and the Nazis had occupied Denmark ("see, you can't even defend _yourselves_, let alone Iceland!) and the international community was too busy with war. 

Perhaps not the same now?