Ok... It was definitely you who said they were at risk (the post you made about the tanks rolling in)
Anyway....... Denmark at risk of attack?
Given that any country is at risk of attack then yes, they are at risk.
How great is the risk is the next question. Denmark being Denmark... The risk is minimal compared to us. We are the UK (currently) best friends of the USA. This puts us way way higher up on the risk scale. We're also pretty strategic geographically which again raises the risk for us in comparison to a country like Denmark.