Denmark reportedly prepared to sabotage Greenland's airstrips and deployed troops with explosives in January, fearing a U.S. invasion, according to Danish broadcaster DR. NEWYou can now listen to Fox News articles! Denmark prepared to sabotage Greenland’s airstrips using explosives and flew in blood supplies amid fears of a potential U.S. invasion earlier this year, according to a new report by Danish public broadcast... [2406 chars]