Yes. Expand your hypothesis about such a scenario.
I did some calculations. The mass of the Greenland ice sheet is approximately 3 x 10^12 more than large iceberg. That would be like an person of average mass being struck by a slow moving bacteria. (rough analogy)
This post was edited by Element 99 at July 16, 2018 10:32 AM MDT
Not even one person Ele? Not that I doubt you but I'm gonna Google it. No disrespect intended. Just Googled it. As of 2016 56,186 human beings lived in Greenland. FYI. Thank you for your reply.
This post was edited by RosieG at July 17, 2018 3:23 AM MDT
How does an iceberg become "rogue"? It's only a lump of ice that broke off the end of a glacier where the latter meets the sea in the natural course of things, and though they can be potentially hazardous to shipping, icebergs are commonplace.
Also, how does an iceberg "threaten" a very large country? Since nine-tenths of its bulk is submerged, if it approached the coast it would simply ground on the sea-bed in the shallows near the shore. The worst it could do is obstruct the approaches to a harbour, or perhaps damage installations like undersea cables in grounding.
Element 99 