Denmark has invited the U.S., Norway, Canada and Russia to a conference next year to discuss their competing claims to the North Pole, the Danish government said Thursday according to The Associated Press. Foreign Minister Per Stig Moeller said he and Greenland Premier Hans Enoksen had sent invitations this week to the foreign ministers of «all five Arctic superpowers.» The meeting will be held May 27-29 in Ilulissat in Greenland _ a semiautonomous territory, Danish tabloid Jyllands-Posten said. «We've seen different nationalistic manifestations and disputes,» Moeller told The Associated Press by telephone. «We have to discuss ways on how we should behave toward each other and how we should treat the Polar region.»