Being a military man, I will try to answer your question in a non-political way. It's not up to me to judge whether Russian behaviour towards the Kingdom of Denmark is acceptable or not.
I have noted, because I have a personal interest in what's going on in the Arctic, that the Russians are coming with different statements. Maybe the reason is that they know very well that they are the only one of the five bordering countries that is not part of NATO and that is why they feel squeezed. I don't know. I also noted, actually yesterday, that the Russian ambassador in Copenhagen wrote a letter in one of the national newspapers saying that Russia would follow international rules concerning the Arctic and that they would adhere to what was agreed on the Ilulissat Declaration. The essence of the ambassador's letter was basically that Russia would follow international rules concerning all the ongoing discussions about the Arctic.
Concerning airspace and the 200 nautical mile waters, I'm not aware that Russia has violated our airspace in Greenland, at least for many, many years. I also am quite sure that every time they enter Danish waters they follow the rules for announcing their presence. If they go into our national waters and if they are doing scientific investigations on the economical zone, they are also doing the proper procedure. We don't have, let's say, concrete examples, at least not to my knowledge, that Russia is violating our sovereignty in Greenland. Of course, we also have a long historical neighbourship with Russia back in the southern part of the kingdom, in the Baltic. We have a fairly good cooperation with Russia there right now.
I must answer your question by saying that there's nothing to report on that matter.